in the electrolysis of molten cabr2, which product forms at the cathode?
Answers
When Cabr2 is electrolysed, calcium is produced at the cathode. At the cathode, the positive ions get decreased, whereas the negative ions are not affected.
Electrolysis is a chemical reaction that breaks down compounds utilizing electricity. The compound in the molten state or in an aqueous solution conducts electricity due to the presence of ions. This allows the electrodes to be connected to a power source like a battery.
The cathode, which is negatively charged, attracts the positively charged ions. When they arrive at the cathode, they gain electrons and become neutral atoms or molecules. On the other hand, at the anode, which is positively charged, the negatively charged ions get attracted. They then give up electrons and become neutral atoms or molecules. Therefore, the product at the cathode in the electrolysis of molten Cabr2 is calcium.
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Related Questions
what is the original source of electrons for psii?
Answers
Answer: In the photosystem II (PSII) reaction center, energy from sunlight is used to extract electrons from water. Explantion: The electron transport chain moves protons across the thylakoid membrane into the lumen.
please someone help !!!!
Answers
Answer:
mass, space, composition, changes, 5, carbon, carbon, organisms, analytical chemistry, physical chemistry, energy transfer, two
Explanation:
what is the purpose of using the Bohr model? what does this model shows . ?
i need helppp bro
Answers
Answer:
The purpose of a Bohr model is to show the atom(s) as a central nucleus; containing protons and neutrons with the electrons in circular orbitals at specific distances from the nucleus.
Explanation:
Have a great rest of your day
The one and only,
-Mr. Universe
In 1913 Bohr proposed his model of the atom , it's purpose was to explain how electrons can have stable orbits around the nucleus. It shows electrons orbiting the nucleus of an atom -He found that electrons farther away from the nucleus have more energy, meaning the electrons that are closer to the nucleus have less energy.
For example...(shows Bromine )
(you can give that gentleman up top brainliest)
pls say the 5 methods of preventing rusting of iron
Answers
Explanation:
Corrosion of iron is called as rusting. Rusting is oxidation of iron in the presence of oxygen and water and leads to formation of hydrated ferric oxide.
Methods to prevent rusting are :
1. Application of paint: It prevents the direct exposure of metal to atmosphere.
2. Application of oils or grease: It creates a barrier between the metal and atmosphere.
3. Galvanization : It is coating of iron with more active metal zinc so that zinc gets oxidized and protects iron.
4. Cathodic protection : It involves connecting iron to a more active metal which loses electrons on behalf of iron and thus protects iron by rendering it as cathode.
5. Coating with wax tapes: It prevents the direct exposure of metal to atmosphere.
PLEASE HELP ASAP!!!! 10 POINTS!!!!
Answers
Please explain your reasoning and give explanation of why you chose that answer
Answers
Answer:
a. Cellular Respiration produces more ATP than Anaerobic Respiration.
Explanation:
Cellular Respiration creates a total of 36-38 ATP per round. Anaerobic processes only produce 2 ATP per cycle.
A 26.5 g sample of nitrogen, N2 , has a volume of 50.0 L and a pressure of 640. mmHg . express answer in three sig figsWhat is the temperature of the gas in kelvins?What is the temperature of the gas in degrees Celsius?
Answers
To answer this question we have to usethe ideal gas law:
\(PV=nRT\)Where P is the pressure, V is the volume, n is the number of moles, R is the constant of ideal gases (0.082atmL/molK) and T is the temperature (in Kelvin degrees).
The first step is to convert the given mass of N2 to moles using its molecular mass:
\(26.5gN_2\cdot\frac{molN_2}{28gN_2}=0.95molN_2\)And convert the pressure from mmHg to atm (1atm=760mmHg):
\(640mmHg\cdot\frac{1atm}{760mmHg}=0.84atm\)Finally, solve the initial equation for T and replace for the given values:
\(\begin{gathered} T=\frac{PV}{nR} \\ T=\frac{0.84atm\cdot50.0L}{0.95mol\cdot0.082atmL/molK} \\ T=539.15K \end{gathered}\)The temperature of the gas is 539.15K.
Convert this temperature to Celsius by substracting 273.15 to the temperature in Kelvins:
\(T=539.15-273.15=226\)The temperature of the gas is 226°C.
Using what you can recall from this unit, write one or two short paragraphs describing John Dalton’s atomic model. If needed, search the Internet for descriptions of the model.
Answers
Answer:
Five points of Dalton's atomic theory:
1) all elements are made up of atoms.
2) atoms are so small that they cannot be divided any further.
3) an atom can neither be destroyed nor be formed.
4) atoms of an element are similar, they possess the same mass and same properties.
5) atoms of different elements combine in a definite ratio to form compounds.
Due to further experimentation, it was concluded that an atom is made up of small particles identified as protons, neutrons, and electrons. They can be further subdivided.
Another change is the presence of isotopes of atoms of different elements. Hence, atoms of the same element can also have different masses.
Hope this helps, have a nice day/night! :D
As per Dalton's atomic model atoms are the minuscule, distinct building blocks of all stuff.
What is Dalton's atomic model?
Dalton proposed that the concept of atoms may be used to explain the laws of conservation of mass as well as definite proportions. He proposed that atoms, of the kind, that he described as "solid, tightly compacted, hard, impenetrable, moving particle," are the smallest, indivisible units of matter.
Dalton's atomic model is as fellow:
Atoms are the minuscule, distinct building blocks of all stuff.Atoms are unbreakable and undividable.An element's atoms all have the same weight and other characteristics.Atoms of various elements have varying masses.To know more about Dalton's atomic model.
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You are going to carry out a chemical reaction in which you need 16 g of oxygen for every 7.0 g of
nitrogen that will be used. If you have 0.554 kg of oxygen, how many milligrams of nitrogen do you
need?
Answers
Answer: To solve this problem, we can use the given information to set up a proportion. The ratio of oxygen to nitrogen in the reaction is 16 g : 7.0 g, or 8 : 3.5. We can set up a proportion using these ratios as follows:
(3.5) x = (8) 0.554 kg
We can solve this proportion by cross multiplying to find the value of x, which is the amount of nitrogen needed:
3.5 * 0.554 kg = 8 * x
1.947 kg = 8 * x
x = 0.24125 kg
We can convert this value to milligrams by multiplying it by 1,000,000:
x = 0.24125 kg * 1,000,000 mg/kg
= 241,250 mg
Therefore, the amount of nitrogen needed for the chemical reaction is approximately 241,250 milligrams.
which element has the lowest atomic mass in group 6A
Answers
9. In terms of Material Sustainability Attribute what HPD stands for? 10. What VOC stands for in terms of sustainability? 11. Single attribute product sustainability attributes are assessed for particular issues such as: a. thermal performance b. emission of VOCs, c. energy performance d. total cost of the building e. a,bc 12. International Green Construction Code a. Developed by ICC in response to demand and initiatives such as LEED. b. Baseline code as opposed to a multi-tiered rating system. c. Applies primarily to non-residential building. d. Newly developed and not yet widely adopted, and has some conflicts with the LEED certification process. e. All of the above 13. Lumber applies to wood products derived directly from logs through sawing and planning operations with no other manufacturing except cutting to length. True False 14. The terms lumber, solid lumber, solid sawn lumber, and sawn lumber are synonymous. True False 15. Wood compare with other structural materials a. Low strength per weight ratio b. High strength per weight ratio 16. Wood is much stronger by weight than concrete. True False 17. Concentric annual rings are visible in the vertical section of a tree and provide a good estimation of the age of the tree True False
Answers
9. In terms of Material Sustainability Attribute HPD gives information about a product's content, any potential health hazards associated with the product, and the safe handling and disposal of the product.
10. In terms of sustainability, VOC gives information about chemicals emitted by building materials and finishes that can cause negative health effects for people and contribute to air pollution.
11. Single attribute product sustainability attributes are assessed for particular issues such as emission of VOCs, thermal performance, and energy performance. Thus, option E. (a, b, c) is correct.
12. International Green Construction Code is developed by ICC (International Code Council) in response: all of the above is the correct answer (Option E).
13. The statement "lumber applies to wood products derived directly from logs through sawing and planning operations with no other manufacturing except cutting to length" is true.
14. The statement "the terms lumber, solid lumber, solid sawn lumber, and sawn lumber are synonymous" is true.
15. Wood is known for its high strength-per-weight ratio as compared to other structural materials. (Option B).
16. The statement "Wood is much stronger by weight than concrete" is false because wood is less strong by weight than concrete.
17. The statement "Concentric annual rings are visible in the vertical section of a tree and provide a good estimation of the age of the tree" is true.
HPD stands for Health Product Declaration. In terms of Material Sustainability Attribute HPD gives information about a product's content, any potential health hazards associated with the product, and the safe handling and disposal of the product. VOC stands for Volatile Organic Compounds. In terms of sustainability, VOC gives information about chemicals emitted by building materials and finishes that can cause negative health effects for people and contribute to air pollution.
International Green Construction Code is developed by ICC (International Code Council) in response to demand and initiatives such as LEED. It is a baseline code as opposed to a multi-tiered rating system. It applies primarily to non-residential buildings. It is newly developed and not yet widely adopted and has some conflicts with the LEED certification process.
Thus, the correct answer is
11. E
12. E
13. True
14. True
15. B
16. False
17. True
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What did you learn from the background information about rock types?
Answers
The background information about rock types gives us idea about that there are basically three types of rocks and they are found on different places.
What are rocks?Rocks are defined as a naturally occurring material made up of crystalline crystals of several minerals that have fused together to form a solid lump.
It can also be defined as the material that is naturally solidified and is made up of mineral grains.
There are basically three types of rocks..
Igneous rockSedimentary rock Metamorphic rockEach of these rocks is the end product of a physical process that occurs during the rock cycle, such as melting, cooling, eroding, compacting, or deforming.
Thus, the background information about rock types gives us idea about that there are basically three types of rocks and they are found on different places.
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How many grams are there in 2.5 moles of Ca(OH)2?
Answers
Answer: 185 grams
Explanation: First find out how many grams are in one mol: The molar mass es are taken from the periodic table, Ca is 40, O is 16, H is 1. There are 2 O and 2 H for (OH)2: 40+32+2= 74g/mol x 2.5 mol = 185 the moles cancel and you are left with grams
A Doctors Order requests 500 mg of ampicillin IV in a 50-mL MiniBag of 0.9% sodium chloride injection. You have a 4-g vial of sterile powder, which, when reconstituted, will provide 100 mg/mL of ampicillin. How many millilitres of reconstituted solution will be needed to provide the 500-mg dose?
A. 4 ml
B. 5 ml
C. 2.5 ml
D. 25 ml
2. Rx: Penicillin G potassium 500 000 units IV q6h in 50-mL MiniBag of 0.9% sodium
chloride injection. You have a vial of Penicillin G containing 5 000 000 units. After
reconstitution, the total volume of the vial is 20 mL, How many millilitres of penicillin
should be drawn up to provide the prescribed dose for each 50-mL MiniBag?
A. 0.5 mL
B. 1 mL
C. 4 mL
D. 2 mL
3, In reference to question 2, how many 50-mL MiniBags would you provide to cover 24
hours of treatment?
A. 1
B. 6
C. 3
D. 4
4. Rx: Dexamethasone 12 mg IV push Drug available: Dexamethasone 4 mg/5 mL How
many millilitres would be needed to be drawn up for one dose?
A. 3 ml
B. 2.4 ml
C. 10 ml
D. 15 ml
5. Rx: Heparin 40 000 units in D5W 1000 mL Drug available: Heparin 10 000 units/mL 2
mL single-dose vial How much heparin solution would be injected into the D5W 1000-
mL bag?
A. 1 ml
B. 2 mL
C. 4 mL
D. 8 mL
Answers
(1) The volume of reconstituted solution is 5 mL. Option B is correct. (2)The amount of penicillin needed is 0.5 mL. Option A is correct. (3)Total 4 Mini-Bags o cover 24 hours of treatment. Option D is correct. (4)Total, 15 ml. will be needed to drawn up for one dose. Option D is correct. (5)The required amount of heparin solution is 8 mL. Option D is correct.
To calculate the volume of reconstituted solution needed to provide the 500 mg dose of ampicillin, we can use the formula;
Volume (mL) = Dose (mg) / Concentration (mg/mL)
Dose = 500 mg
Concentration = 100 mg/mL
Volume (mL) = 500 mg / 100 mg/mL
= 5 mL
Hence. B. is the correct option.
To calculate the amount of penicillin needed to provide the prescribed dose for each 50-mL MiniBag, we can use the ratio:
Prescribed dose : Total amount in the vial = Volume drawn up : Volume of the vial
Prescribed dose = 500,000 units
Total amount in the vial = 5,000,000 units
Volume of the vial = 20 mL
Volume drawn up = (Prescribed dose / Total amount in the vial) × Volume of the vial
Volume drawn up = (500,000 units / 5,000,000 units) × 20 mL
Volume drawn up = 0.1 mL
Hence, A. is the correct option.
To cover 24 hours of treatment, you would provide the number of MiniBags required to administer the prescribed dose every 6 hours:
24 hours / 6 hours = 4 MiniBags
Hence, D. is the correct option.
The required dose is 12 mg, and the available concentration is 4 mg/5 mL. We can use the ratio;
Dose : Concentration = Volume drawn up : Total volume
Dose = 12 mg
Concentration = 4 mg/5 mL
Volume drawn up = (Dose / Concentration) × Total volume
Volume drawn up = (12 mg / 4 mg/5 mL) × 5 mL
Volume drawn up = 15 mL
Hence, D. is the correct option.
The required amount of heparin solution to be injected into the D5W 1000-mL bag can be calculated using the ratio:
Amount to be injected : Concentration = Volume drawn up : Total volume
Amount to be injected = 40,000 units
Concentration = 10,000 units/mL
Volume drawn up = (Amount to be injected / Concentration) × Total volume
Volume drawn up = (40,000 units / 10,000 units/mL) × 2 mL
Volume drawn up = 8 mL
Hence, D. is the correct option.
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Assume that 41. 1g of hydrogen peroxide decompose to produce oxygen gas at STP to the following balanced equation:
2H2O2 (l) ---------> 2H2O(l) + O2 (g)
How many Liters of oxygen gas are produced?
Answers
At STP, 1 mole of any gas occupies a volume of 22.4 liters. In order to calculate the amount of oxygen gas produced in the reaction, we must first calculate the number of moles of hydrogen peroxide present in the reaction.
Since 1 mole of hydrogen peroxide has a mass of 34.02 g, we can calculate the number of moles as follows:
41.1/34.02 = 1.20 molesSince the reaction produces 1 mole of oxygen for every 2 moles of hydrogen peroxide, the total number of moles of oxygen produced is 1.20/2 = 0.60 moles.
To calculate the volume of the oxygen gas produced, we multiply the number of moles of oxygen by 22.4 liters, which gives us 0.60 * 22.4 = 13.44 liters of oxygen gas produced.
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Bill ee team riing from a teakettle boiling on a tove. He ay the team i water vapor, and ince chemical reaction often produce a ga, there mut be a chemical reaction in the kettle. What i Bill' mitake?
Answers
Bill sees steam rising from a teakettle boiling on the stove. He says the steam is water vapor, and since chemical reactions often produce a gas, there must be a chemical reaction in the kettle. The mistake by Billy is that there is no chemical reaction happening in the kettle.
Water can change into different state, one of them is gas in the form of steam. This happens when energy is supplied as in this case by heating, there is no chemical reaction involved as there is change in the state of water from liquid to gas.
Technically speaking, boiling water is defined as having a steaming temperature of 212 F. As low as 160 F, bubbles can start to form well before this temperature.
Water can be boiled either slowly over medium heat or fast over high heat. The water begins cold when prepared in Greek cuisine. The usual rule of thumb is to use high heat and bring the water to a boil as rapidly as you can if no food present. Bring the water to a boil over a lower heat if there is food present.
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Directions:
Read the question carefully.
Write your response in at least three (3) sentences.
Use the HINT and SENTENCE STARTERS to help you with the response.
Question:
Imagine you're cooking dinner for a few of your friends. You decide to make a salad with homemade dressing. Why do you need to think about the polarity of the different ingredients in your salad dressing in order for it to turn out well? [HINT: "Like dissolves like"]
Sentence Starters:
- For the ingredients of a salad dressing to mix well, they should either...
- If both polar and nonpolar ingredients should be used, then they ...
Answers
The reason I have to think about the polarity of the different ingredients in my salad dressing in order for it to turn out well is simply because so that the soluble ingredients can dissolve completely and have a nice taste.
What is polarity?Polarity can simply be defined as a state of an atom or a molecule inherent in a body that exhibits opposite properties or powers in opposite parts or directions.
So therefore, the reason I have to think about the polarity of the different ingredients in my salad dressing in order for it to turn out well is simply because so that the soluble ingredients can dissolve completely and have a nice taste.
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A 25. 00 cm° sample of 0. 020 mol. Dm-3 Sr(OH)2 is titrated with a hydrochloric acid,
HCI (aq) solution of unknown concentration. 20. 0 cm° of the HCI solution had been added for complete neutralization. 1. 0 M = 1. 0 mol•L-1 = 1. 0 moldm-3
2HC/(ag) + Sr(OH)2(ag) - SrC/2(ag)
+ 2H20(8)
What is the molar concentration (molarity) of the HCIaq) solution?
Answers
The molar concentration (molarity) of the HCI aq solution is 0.125 mol dm⁻³.
The balanced chemical equation for the reaction between hydrochloric acid and strontium hydroxide is:
2HCl(aq) + Sr(OH)2(aq) → SrCl2(aq) + 2H2O(l)
From the equation, we can see that 2 moles of hydrochloric acid react with 1 mole of strontium hydroxide.
Given that the volume of the hydrochloric acid solution is 20.00 cm³ and the concentration of the strontium hydroxide solution is 0.020 mol dm⁻³, we can calculate the amount of strontium hydroxide present:
Amount of Sr(OH)2 = concentration × volume
⇒ = 0.020 mol dm⁻³ × 0.2500 dm³
⇒ = 0.00500 moles
Since 2 moles of hydrochloric acid react with 1 mole of strontium hydroxide, the amount of hydrochloric acid used in the reaction is:
Amount of HCl = 0.5 × Amount of Sr(OH)2
⇒ = 0.5 × 0.00500 moles
⇒ = 0.00250 moles
The molar concentration of the hydrochloric acid solution can now be calculated:
Molar concentration = Amount of HCl / Volume of HCl solution
⇒ = 0.00250 moles / 0.02000 dm³
⇒ = 0.125 mol dm⁻³ or 0.125 M
Therefore, the molar concentration of the hydrochloric acid solution is 0.125 mol dm⁻³.
In a titration, the amount of one reactant (in this case, the hydrochloric acid) is determined by reacting it with a known amount of the other reactant (the strontium hydroxide). The reaction is allowed to go to completion, which means that all of the hydrochloric acid has reacted with the strontium hydroxide.
From the balanced chemical equation, we can see that 2 moles of hydrochloric acid react with 1 mole of strontium hydroxide. Therefore, we can use the amount of strontium hydroxide that was present in the sample to calculate the amount of hydrochloric acid that was used in the reaction.
Once we know the amount of hydrochloric acid used in the reaction, we can use the volume of the hydrochloric acid solution to calculate its concentration (molarity) using the formula:
Molar concentration = Amount of substance / Volume of solution
Substituting the values that we have calculated gives us the molar concentration of the hydrochloric acid solution.
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The reaction R of the body to a dose M of medication is often represented by the general function R(M)=M^2(C/2−M/3where C is a constant. If the reaction is a change in blood pressure, R is measured in millimeters of mercury (mmHg). If the reaction is a change in temperature, Ris measured in degrees Fahrenheit ("F). The rate of change dR/dM is defined to
be the body's sensitivity to the medication. Find a formula for the sensitivity dR/dM=
Answers
A formula for the sensitivity dR/dM represents the sensitivity of the body's reaction to the medication. It shows how the reaction changes with respect to the dose of the medication, M. The term M*C represents the contribution of the constant C to the sensitivity, while the term \((2M^2)/3\) represents the contribution of the dose M itself.
To find a formula for the sensitivity, dR/dM, let's differentiate the given function R(M) with respect to M.
Step 1: Start with the function \(R(M) = M^2(C/2 - M/3).\)
Step 2: Apply the power rule of differentiation to differentiate M^2. The power rule states that if
\(f(x) = x^n, then f'(x) = n*x^(n-1). \\\)
n this case, n = 2.
\(dR/dM = 2M^(2-1)*(C/2 - M/3).\)
Simplifying, we have:
\(dR/dM = 2M*(C/2 - M/3).\)
Step 3: Distribute the 2M to each term inside the parentheses:
\(dR/dM = M*C - (2M^2)/3.\)
This formula represents the sensitivity of the body's reaction to the medication, dR/dM. It shows how the reaction changes with respect to the dose of the medication, M. The term M*C represents the contribution of the constant C to the sensitivity, while the term \((2M^2)/3\) represents the contribution of the dose M itself.
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the formula for the sensitivity, or the rate of change of the reaction R with respect to the dose M, is
dR/dM = MC - M\(^2^/^3\)
How do we calculate?We calculate the derivative of the reaction function R(M) with respect to M.
the reaction function: R(M) = M²(C/2 - M/3)
We will apply the power rule and the constant multiple rule of differentiation,
dR/dM = d/dM [M²(C/2 - M/3)]
= 2M(C/2 - M/3) + M²(0 - (-1/3))
= 2M(C/2 - M/3) + M\(^2^/^3\)
dR/dM =\(MC - 2M^2^/^3 + M^2^/^3\)
= \(MC - M^2^/^3\)
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Please help with this
Answers
1. Double-Replacement reactions
2. Decomposition
3. Combustion
4. Syntesis
5. Single replacement
Further explanationGiven
Chemical equations
Required
Type of reaction
Solution
1. 2AgNO₃ + MgCl₂ ⇒ 2AgCl + Mg(NO₃)₂
Double-Replacement reactions. Happens if there is an ion exchange between two ion compounds in the reactant
2. 2KBr⇒2K +Br₂
Decomposition
Single compound breaks down in to 2 or more products
3. C₃H₈ + 5O₂ ⇒ 4H₂O + 3CO₂
Combustion
Hydrocarbon and Oxygen reaction and form water and carbon dioxide
4. NaO + H₂O ⇒ NaOH
Syntesis
2 or more reactants combine to form a single product
5. Zn + CuCl₂ ⇒ZnCl₂ + Cu
Single replacement
One element replaces another element from a compound
The half-life of a first-order reaction is 30.0 seconds. what is the rate constant k for the reaction?
Answers
The rate constant of the first-order half-life reaction is 0.023 / sec or ln(2)/30 sec.
The formula for a first-order half-life reaction is t = (1/k) [ ln (initial concentration/final concentration)].
For determining the rate constant k, we can easily substitute the given t=30.0s to the formula. As for the initial and final concentration, we will be using 1/2 of the initial concentration as the final concentration. With this, the ratio of initial and final concentration would be equal to 1/(1/2) or 2. The exact value of the concentration is not important for this problem.
t= (1/k) * ln(2)
30.0 seconds = (1/k) * ln(2)
k = (ln (2)) / 30 seconds
k = ln (2) / 30 or 0.023/sec
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Answer questions 2 and 3
Please help me I need this correct or my grade drops and thank you if you answer my the questions.
Answers
Answer:
2:a-heterogenous
b-homogenous
c-heterogenous
d-heterogenous with water
3:Filtration is used to separate insoluble particles from a solution
Distillation is used to separate liquids with close but different boiling points e.g water and ethanol
Explanation:
2: homogenous mixtures form a uniform layer meaning that a mixture containing more than one layer is heterogenous
Please answer ASAP
How many moles of KBro3 are required to
prepare 0.0700 moles of Br2 according to the
given reaction?
KBrO3 + 5KBr + 6HNO3➡️6KNO3 + 3Br2 + 3H2O
A. 0.0233
C. 0.220
B. 0.210
D. 0.0704
Answers
Answer:
A. 0.0233
Explanation:
according to the equation,
no. of moles of KBrO3 : no. of moles of Br2 = 1 : 3
no. of moles of KBrO3
= ⅓ × 0.0700mol
= 0.0233 (3 sig. fig.)
The moles of KBrO₃ are required to prepare 0.0700 moles of Br₂ according to the given reaction is 0.023 moles.
What is the stoichiometry?Stoichiometry of the reaction gives idea about the amount of entities present before and after the completion of chemical reaction.
Given balanced chemical reaction is:
KBrO₃ + 5KBr + 6HNO₃ → ️6KNO₃ + 3Br₂ + 3H₂O
From the stoichiometry of the reaction, it is clear that:
3 moles of Br₂ = produced from 1 mole of KBrO₃
0.07 moles of Br₂ = produced from 1/3×0.07=0.023 moles of KBrO₃
Hence required moles of KBrO₃ is 0.023 moles.
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Why are enzymes required for living things to function? Reactions take place too slowly at body temperature and must be speeded up. Reactions take place too quickly at body temperature and must be slowed down. Reactions in the body require enzymes to act as reactants. Reactions in the body produce enzymes as byproducts.
Answers
Answer:
Reactions take place too slowly at body temperature and must be speeded up.
Explanation:
Reactions take place too slowly at body temperature and must be speeded up.
An enzyme is a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being altered in the process. Enzymes are required for living things to function because they speed up chemical reactions. Enzymes are protein catalysts.
Reactions take place too slowly at body temperature and must be speeded up.
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a compound that contains only carbon, hydrogen, and oxygen is 68.5% c and 8.63% h by mass. what is the empirical formula of this substance?
Answers
According to the given statement C₄H₆O is the empirical formula of this substance.
Why are empirical formulas important?Empirical formulae are beneficial since figuring out the molecular formula can be immensely aided by knowing the relative amounts of each constituent in a molecule. It's crucial to have an n-value in order to figure out the precise figure of each atom within the molecule.
What are instances of empirical formulas?The smallest full numerical percentage of atoms present in a molecule serves as the actual formulation of a substance in chemistry. Hydrogen superoxide (SO) and disulfur -2 empirical formulae are two straightforward examples of this notion (S2O2).
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Please help now ASAP lpleaseee helppp
Answers
Phosphorous at 18.9%. According to analysis, sodium, phosphorus, and oxygen make up 42.1%, 18.9%, and 39% of sodium phosphate, respectively.
What is the short definition of percentage composition?The ratio of the amounts of each element to the sum of the individual element amounts present in the compound, multiplied by 100, is the definition of the percentage of a given compound. In this instance, the quantity is expressed in grams of the constituent ingredients.
What distinguishes mass percent from percent composition?The proportional mass of each component of a compound is known as the percent composition. The mass percent of a compound is the weight of an element expressed as a share of the complex's overall mass. For instance, a molecule of water has a structure of one oxygen atom and two hydrogen atoms.
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The data from one particular experiment do not agree with a current theory. What is the next step?
O Discard those data.
O Change the theory immediately.
O Try to repeat the data from the experiment.
O Change the data to agree with the theory.
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Answer: C Repeat the experiment and compare the data again.
Explain how the number of valence electrons determines if an extrinsic material produced is \( p \)-type or \( n \) type.
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The number of valence electrons determines if an extrinsic material produced is p-type or n-type.
In semiconductors, valence electrons are responsible for the electrical conductivity of the material. Valence electrons are the outermost electrons of an atom that participate in chemical reactions and bond formation.
The type of extrinsic material produced depends on the type of dopant used and the number of valence electrons in the dopant.
The dopant is added to the intrinsic semiconductor in small quantities to increase its conductivity.The dopant atom replaces a semiconductor atom in the crystal lattice, causing the number of valence electrons to change.
If the dopant has fewer valence electrons than the semiconductor atom it replaces, it is called a p-type dopant because it leaves a hole (a positive charge carrier) behind when it bonds with other atoms in the lattice.
When the dopant has more valence electrons than the semiconductor atom it replaces, it is called an n-type dopant because it introduces an extra electron (a negative charge carrier) into the lattice.
Hence, the number of valence electrons determines if an extrinsic material produced is p-type or n-type.
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A change in the external or internal environment of an organism is known as
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Answer:
A stimulus is a change in the internal or external environment. A receptor detects a stimulus.in the citric acid cycle, a double bond is introduced into a four-carbon compound containing the ch2-ch2-group, producing fumarate. show a similar reaction that occurs in the oxidation pathway
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In the oxidation pathway, a similar reaction occurs in the β-oxidation of fatty acids. The double bond is introduced into a four-carbon compound with a CH₂-CH₂ group, producing trans-Δ²-enoyl-CoA.
This reaction involves the removal of two carbons through a series of enzymatic steps, leading to the formation of a double bond at the β-carbon position. In the β-oxidation of fatty acids, the fatty acid molecule is broken down in the mitochondrial matrix. The process involves four steps: oxidation, hydration, oxidation, and thiolysis. During the second oxidation step, a double bond is introduced into a four-carbon compound with a CH₂-CH₂ group, resulting in the formation of trans-Δ²-enoyl-CoA. This compound then undergoes further oxidation and cleavage, leading to the release of acetyl-CoA and the generation of NADH and FADH₂, which participate in the electron transport chain for ATP production. Overall, β-oxidation plays a crucial role in the energy metabolism of fatty acids.
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