formula of barium hydroxide and potassium superoxide
Answers
Answer:
Barium hydroxide Ba(OH)2
Potassium superoxide KO2
Related Questions
HELPPPP!!
A student was asked to model different relationships between organisms. She used the example of an oak tree and Spanish moss in the picture below to show one of these relationships. The Spanish moss uses the oak tree for support but makes its own food and gets its water from the air. The oak tree receives no benefit but is generally not harmed by the Spanish moss. What type of relationship does this best represent?
mutualism
parasitism
competition
commensalism
Answers
Answer:
Commensalism
Explanation:
Commensalism is an association between two organisms in which one benefits and the other derives neither benefit nor harm. The Spanish moss benefits and the oak tree neither benefits nor is harmed.
Which of the following is a disadvantage of increasing our use of solar energy?It would reduce our dependence on fossil fuels.Energy from the sun is abundant.Currently, the production and storage of solar energy is bit as cost efficient when compared to obtaining the same quantity of energy from fossil fuels.Solar energy does not generate air pollution such as nitrogen oxides and sulfur oxides.
Answers
The disadvantage of increasing our use of solar energy is that unfortunately currently, the production and storage of solar energy is bit as cost efficient when compared to obtaining the same quantity of energy from fossil fuels.
0.20dm
2. How many grams of salt, NaCl need to be dissolved in 0.50dm of solution to
make a 0.20moldm solution?
Answers
Answer:
I don't no sorry. ਕਿਉੁਂਕਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ 478figxigxurRyyv ਸ੍
Assuming a car (with a 70-L) gas tank can hold approximately 50,000 (5.00 * 10^4) g of octane(C8H18) or 50,000 (5.00 * 10^4) g of ethanol (C2H6O). How much carbon dioxide (CO2), in grams, is produced in one tank of gas from the combustion of each amount?
Answers
Answer:
- From octane: \(m_{CO_2}=1.54x10^5gCO_2\)
- From ethanol: \(m_{CO_2}=9.57x10^4gCO_2\)
Explanation:
Hello,
At first, for the combustion of octane, the following chemical reaction is carried out:
\(C_8H_{18}+\frac{25}{2} O_2\rightarrow 8CO_2+9H_2O\)
Thus, the produced mass of carbon dioxide is:
\(m_{CO_2}=5.00x10^4gC_8H_{18}*\frac{1molC_8H_{18}}{114gC_8H_{18}}*\frac{8molCO_2}{1molC_8H_{18}}*\frac{44gCO_2}{1molCO_2} \\\\m_{CO_2}=1.54x10^5gCO_2\)
Now, for ethanol:
\(C_2H_6O+3O_2\rightarrow 2CO_2+3H_2O\)
\(m_{CO_2}=5.00x10^4gC_2H_6O*\frac{1molC_2H_6O}{46gC_2H_6O}*\frac{2molCO_2}{1molC_2H_6O}*\frac{44gCO_2}{1molCO_2} \\\\m_{CO_2}=9.57x10^4gCO_2\)
Best regards.
Nitrogen gas and hydrogen gas react to produce ammonia according to the following equation.
N2 + 3H2 → 2NH3
Which ratio of components is correct?
A For every 2 moles of nitrogen gas, the reaction requires 3 moles of hydrogen gas.
B For every 3 moles of hydrogen gas, the reaction produces 2 moles of ammonia.
C For every mole of hydrogen gas, the reaction produces 2 moles of ammonia.
D For every mole of nitrogen gas, the reaction produces 1 mole of ammonia.
Answers
Answer:
The answer will be "B"
Explanation:
It is B, because as we can see in the problem, it shows that there are three hydrogen gas, which is H₂. So, it shows that the ratio of Hydrogen gas to Ammonia is 3:2. In the answer, it says for every 3 mol of H₂ 2 moles of ammonia is produce. Therefore, B is correct.
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Fusion reactions power the _____ in space. Humans currently use fusion in _____ , but researchers are seeking more applications.
Answers
Answer:
Sun and the stars, nothing humans don't use fusion at all
Explanation:
Nuclear fusion reactions power the sun in space. Humans currently use fusion in nuclear weapons by means of nuclear reactions, but researchers are seeking more applications.
What are nuclear reactions?There are two types of nuclear reactions which are nuclear fusion and nuclear fission .They involve the combination and disintegration of the element's nucleus respectively.
In nuclear fission, the nucleus of the atom is bombarded with electrons of low energy which splits the nucleus in to two parts .Large amount of energy is released in the process.It is used in nuclear power reactors as it produces large amount of energy.
In nuclear fusion,on the other hand, is a reaction which occurs when two or more atoms combine to form a heavy nucleus.Large amount of energy is released in the process which is greater than that of the energy which is released in nuclear fission process.
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select the set of quantum numbers that represents each electron in a ground-state Be atom.n = 2, l = 1, ml = 1, ms = +1/2n = 1, l = 0, ml = -1, ms = +1/2n = 1, l = 0, ml = 0, ms = +1/2n = 2, l = 0, ml = 0, ms = -1/2n = 2, l = 1, ml = 0, ms = -1/2n = 2, l = 0, ml = 0, ms = +1/2n = 2, l = 0, ml = 0, ms = -1n = 1, l = 0, ml = 0, ms = -1/2
Answers
The ground state of an atom is the one with has the lowest energy .
What is quantum numbers ? In order to characterize the location of electrons within an atom, quantum numbers are used.In order to characterize the location of electrons within an atom, quantum numbers are used. There are a total of four groups of quantum numbers: Principle quantum number (n), which is infinitely large. The Orbital quantum number (l) (n - 1) , With values ranging from 0 to (n-1) Values range from -l to +l for the magnetic quantum number (ml).The values of the spin quantum number (ms) are + 1/2 and - 1/2. Be has an electron configuration of 1s² and 2s², hence the set of quantum numbers that represent a ground state corresponds to Be. and these are : n=1 , l =0 , ml=0 , ms =1/2 ( 1s orbital )n=1 , l=0 , ml=0 , ms =-1/2 ( 1s orbital)n=2 , l=0 , ml=0 , ms= 1/2 ( 2s orbital) n=2 , l=0 , ml=0 , ms = -1/2 ( 2s orbital )To know more about Quantum Numbers , visit :
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2. What is forensic odontology ? Why is this area helpful for investigators?
Answers
Explanation:
forensic odontology is the study of dental applications in legal proceedings. which may include bite marks.
it is helpful as it allows for the identification of unknown bodies through dental records.
Answer:
Also called forensic dentists, forensic odontologists are typically called in to: Identify human remains that cannot be identified using face recognition, fingerprints or other means. Identify bodies in mass fatalities, such as plane crashes and natural disasters. This area is helpful for investigators as it helps find more evidence for each case.
PLS HELP
When studying mythology, Jaalib reads a description that says a particular figure is "vernal." What can he guess about
the figure?
O
they are related to spring
O
they are related to autumn
O
they are related to the tides
they are related to the moon
Answers
Answer: They are related to spring.
Explanation:
It should be right, I got this question correct.
Make a simple abstract design using shape tools and color palette on MS paint. Give it an interesting title using paint tool
Answers
To make an abstract design, use the MS Paint tool. To build the design, you may utilize form tools such as circles, squares, and triangles. You may also utilize the color pallet to add color to the shapes.
You may also use the paint brush to draw patterns or lines. You may use the text tool to add text to the design for the title. You may select a typeface and color that compliments the overall design. For example, you might call it "Chaotic Harmony" or "Colorful Illusion" to convey the abstract design. You may use the text tool to add text to the design for an intriguing title. You may select a typeface and color that compliments the overall design. a simple abstract design using shape tools and color palette on MS paint. Give it an interesting title using paint tool. You may use the text tool to add text to the design for an intriguing title. You may select a typeface and color that compliments the overall design.
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Plants use sunlight as energy to convert carbon dioxide and water into glucose and oxygen. Which best describes the
reaction?
O The law of conservation of mass indicates the same amount of carbon will be found in the reactants as in the
products.
O The law of conservation of energy indicates the same amount of carbon will be found in the reactants as in the
products,
The law of conservation of mass indicates the same amount of glucose will be found in the reactants as in the
products.
The law of conservation of energy indicates the same amount of glucose will be found in the reactants as in the
products.
Answers
Answer:
A
Explanation:
Question:
Plants use sunlight as energy to convert carbon dioxide and water into glucose and oxygen. Which best describes the reaction?
Options:
The law of conservation of mass indicates the same amount of carbon will be found in the reactants as in the products. The law of conservation of energy indicates the same amount of carbon will be found in the reactants as in the products. The law of conservation of mass indicates the same amount of glucose will be found in the reactants as in the products. The law of conservation of energy indicates the same amount of glucose will be found in the reactants as in the products.Answer:
A.) The law of conservation of mass indicates the same amount of carbon will be found in the reactants as in the products.
Explanation:
I just did the test on edge 2020 and got it right!
Directions: Fill in the blanks to complete the idea. 1. Constellations are group of that form pattems in the night sky 2. Ursa Major, Cassiopeia, and Orion are some common 3. Stars are used to tell and time, predict weather, and to serve as birth sign
PASAGOT PO NG MAAYOS
KAILANGAN LANG PO
BRAINLIEST+FOLLOW+HEART+POINT
BAD ANSWER-REPORT
Answers
1. Constellations are group of stars that form pattems in the night sky
2. Ursa Major, Cassiopeia, and Orion are some common constellations.
3. Stars are used to tell directions and time, predict weather, and to serve as birth sign.
What is the difference in the electron withdrawing groups in electrophilic aromatic substitution (ENS) and nucleophilic aromatic substitution (NAS)?
Answers
Electrophilic aromatic substitution (EAS) and nucleophilic aromatic substitution (NAS) are two types of reactions that involve substitution of a group on an aromatic ring.
In EAS, electron-withdrawing groups (EWGs) are used to increase the reactivity of the aromatic ring towards electrophiles, leading to substitution of a hydrogen atom. Common examples of EWGs used in EAS include nitro, carbonyl, and halogen groups. In contrast, in NAS, electron-donating groups (EDGs) are used to increase the reactivity of the aromatic ring towards nucleophiles, leading to substitution of a leaving group. Common examples of EDGs used in NAS include amino, alkoxyl, and thiol groups. The difference in the type of groups used reflects the different types of reactivity required for each type of substitution reaction.
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What are the main differences between aneroid barometers and mercurial barometers?.
Answers
Barometer - They are the device used to measure the air pressure
There are two types of barometer -
Aneroid barometersMercurial barometersThe main diffrences between both the barometers are -
There is a hairspring in aneroid barometer that contracts or relax on changing the pressure but in mercurial barometer there is no such spring there is mercury column in tube which rise or fall depending on the pressureIn Aneroid barometers metals are used where as in mercurial barometer mercury itself tells the atmospheric pressure.Thanks for joining brainly community!!
Separate the redox reaction into its component half‑reactions. 3O2+4Co⟶2Co2O3 Use the symbol e− for an electron.
How would these be split into thier respective half-reactions?
Answers
The balanced half-reactions are: Oxidation half-reaction: 4Co → 4Co2+ + 8e-Reduction half-reaction: O2 + 2e- → 2O2 -
Given equation: 3O2+4Co⟶2Co2O3Using the symbol e− for an electron. The redox reaction can be broken down into two half-reactions. The reduction half-reaction is the one in which a species gains electrons and the oxidation half-reaction is the one in which a species loses electrons. The half-reactions are as follows: Reduction Half-reaction Half-reaction equation: O2 + 2e- → 2O2 -Oxidation number of oxygen in O2=0 and in O2^-= -1Charge on the left side = 0Charge on the right side = 2 x (-1) = -2Thus, 2 electrons are added to the left side to balance the charge, making the half-reaction:O2 + 2e- → 2O2 -Oxidation Half-reaction Half-reaction equation: 4Co → 4Co2+ + 8e-Oxidation number of cobalt in Co=0 and in Co2+ =+2Charge on the left side = 0Charge on the right side = 4 x (+2) + 8 x (-1) = -4Thus, 8 electrons are added to the right side to balance the charge, making the half-reaction:4Co → 4Co2+ + 8e-Thus, the balanced half-reactions are: Oxidation half-reaction: 4Co → 4Co2+ + 8e-Reduction half-reaction: O2 + 2e- → 2O2 -
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can someone help me solve the questions below using the data table below please
DATA TABLE:
Mass of flask and vinegar solution- 25.17g
Mass of flask- 15.12g
Volume of vinegar solution (in mL)- 10.00ml
Initial volume of NaOH (in mL)-0.00ml
Final volume of NaOH (in mL)-39.00ml
CALCULATIONS:
Mass of vinegar solution- 10.0503g
Volume of NaOH used in titration (in mL)-39.00ml
Answers
The percent by mass of acetic acid in the vinegar is 2.33%.
Below are the steps to solve the given problem using the data table given below:
Step 1: Calculate the mass of the vinegar. Given,Mass of flask and vinegar solution- 25.17gMass of flask- 15.12gMass of vinegar solution = Mass of flask and vinegar solution - Mass of flask= 25.17 g - 15.12 g= 10.05 g
Step 2: Calculate the moles of NaOH used in the titration.Molarity of NaOH solution is 0.1 M.Moles of NaOH = Molarity × Volume of NaOH usedMoles of NaOH = 0.1 M × 39.00 mL (since the initial volume of NaOH is 0.00 mL)Moles of NaOH = 0.0039 moles
Step 3: Determine the moles of acetic acid used in the reaction.The balanced chemical equation for the reaction between NaOH and acetic acid (the main component of vinegar) is given below:CH3COOH + NaOH → CH3COONa + H2OMoles of NaOH = Moles of CH3COOH (since they react in a 1:1 ratio)Moles of CH3COOH = 0.0039 moles
Step 4: Calculate the mass of acetic acid used in the reaction.Molar mass of acetic acid is 60.05 g/mol.Mass of CH3COOH = Moles of CH3COOH × Molar mass of CH3COOH= 0.0039 moles × 60.05 g/mol= 0.234 gStep 5: Calculate the percent by mass of acetic acid in the vinegar.Percent by mass of acetic acid = (Mass of CH3COOH / Mass of vinegar solution) × 100%= (0.234 g / 10.05 g) × 100%= 2.33%.
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I need help with the balancing one
Answers
Answer:
2Na2S + Cd(NO3)2 ---> CdS + 2NaNO3
The coefficients therefore are 1,1,1&2
what is the maximum wavelength of light that can ionize hydrogen in its ground state?
Answers
Answer: 123×10−7m.
Explanation:
Starting substances
Substance 1
?
Substance 2
+ ?
Jamie works at a company that makes cleaning chemicals. She is trying to make a chemical that smells like flowers. She took two
samples that were gases at room temperature and mixed them in a sealed container.
The diagram above shows the repeating groups of atoms that make up the two starting substances.
After mixing, Jamie found two substances that smelled like flowers in the sealed container. (Nothing had escaped.)
Which of the diagrams shows the repeating groups of atoms that make up the ending substances?
Answers
The combination of the compounds can be found in option C
How is a compound formed?
A compound is formed through a chemical reaction or a combination of elements. In a chemical reaction, two or more elements combine or react with each other to form a compound.
The elements involved in the reaction undergo a rearrangement of their atoms and bonding to form new chemical bonds, resulting in the formation of a compound with different properties from the original elements. This is clear from the images that have been shown in the question.
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. Which of the following statement is false?
D. Metalloids are conductors.
B. The least reactive elements are on the right side of the periodic table.
C. Metals are most reactive on the left hand side of the periodic table.
A. Most metals are solids.
Answers
Answer:
B
Explanation:
Answer: hey im here, whats up?
Explanation:
What are the two different ions present in the compound Al(NO3)3?A) Al3+, (NO3)3- D) Al3+, NO33-B) Al+, NO3- E) Al+, (NO3)3-C) Al3+, NO3
Answers
The two different ions present in the compound Al(NO₃)₃ are Al³⁺ and NO₃⁻.
Generally, an ion is defined as an atom or group of atoms that has an electric charge. Basically, ions with a positive charge are called cations and ions with a negative charge are known as anions. Also, many normal substances exist in the body as ions.
Aluminium nitrate [Al(NO₃)₃] is a compound which is made up of two ions named as aluminium ion which is the cation and nitrate ion which is the anion. Basically, Aluminium nitrate is water soluble salt which is crystalline hydrate in nature.
The balanced chemical reaction is given as,
3 Al³⁺ + 3 NO₃⁻ → 3 Al(NO₃)₃
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(will mark brainliest if ou give me the right answer!!!!)
You observe your friend rub a balloon on their wool sweater and then stick it to the wall. To investigate, you set up an experiment to test whether other objects will respond in the same way when you rub them against a sweater. What is the test variable in your experiment?
A. The number of times you rubbed the object on the sweater
B. The observation that the object sticks to the wall
C. The sweater you use to rub against the objects
D. The type of objects you are testing in the experiment
Answers
Answer:
D
Explanation:
BEcause you are testing which objects will stick. Your control variable will be the sweater. And the number of times you rub the object on the sweter will not make it stick. It will make it stick for a longer period.
Answer:
D. The type of objects you are testing in the experiment
If a 10.0ml sample of unknown liquid has a mass of 7.553g what is the density of the unknown liquid
Answers
The density of the unknown liquid has a mass of 7.553g is 0.7553 g/ml
What is density?Density is the measurement of how tightly a material is packed together.
Given data:
Weight =7.553g
Volume = 10.0ml
Density =\(\frac{mass}{volume}\)
Density =\(\frac{7.553g}{10.0ml}\)
Density = 0.7553 g/ml
Hence, the density of the unknown liquid has a mass of 7.553g is 0.7553 g/ml.
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What happens when two plates move alongside each other?
Answers
Answer:When two plates travel in the same direction, they intersect or collide. A convergent boundary is a collision between two plates that are traveling in the same direction. Large damaging earthquakes occur from the collision. The forming of massive folded mountains occurs as two continental plates collide.
Explanation:
A quantity of gas has a volume of 2250 at a temperature of 45 C and a pressure of 650 torrWhat is the temperature (in °C) if the volume remains unchanged but the pressure is decreased to 565 torr?
Answers
Answer:
your answer is 769
Explanation:
i took the test lol
The pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature, according to Gay Lussac's Law. When you heat a gas, the molecules gain energy and move faster. This means more impacts on the container's walls and an increase in pressure.
The temperature at 565 torr = 276.5 K
What are gas laws?Gas laws are laws that relate a gas's pressure, volume, and temperature. Boyle's law, named after Robert Boyle, states that the pressure P of a gas varies inversely with its volume V at constant temperature, or PV = k, where k is a constant.Boyle's Law states that when the temperature and mass are both constant, the volume of a given amount of gas held at constant temperature varies inversely with the applied pressure.Charles' law states that if the pressure remains constant, the volume occupied by a fixed amount of gas is directly proportional to its absolute temperature.The pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature, according to Gay Lussac's Law. When you heat a gas, the molecules gain energy and move faster. This means more impacts on the container's walls and an increase in pressure.Avogadro's law states that equal volumes of different gases contain an equal number of molecules under the same temperature and pressure conditions.
The temperature = \(\frac{565 X 318.15}{650}\) =276.5 K
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Conider the reaction. MnS()2HCl(aq)⟶MnCl2(aq)H2S(g)
If the mall amount of MnS i combined with the large amount of HCl, what i the ma of the product? The ma of any exce reactant will alo be included in thi total. Empty flak - 400g
Empty beaker- 250g
mall amount flak- 404. 35g
large amount flak - 408. 70g
mall amount beaker- 300g
large amount beaker -350
Small amount flak and large amount beaker = 504. 35g
Large amount flah and mall amount beaker = 458. 70g
Answers
when a large amount of MnS is combined with a small amount of HCl, the total mass of the reactants would be 658.70 g.
When a small amount of MnS is combined with a large amount of HCl, the total mass of the reactants would be 704.35 g.
In a chemical reaction, the mass of the products will equal the mass of the reactants. This means that the total mass of the products (MnCl2 and H2S) should equal the total mass of the reactants (MnS and HCl).
The balance chemical equation is as follows:
MnS(s) + 2HCl(aq) ⟶ MnCl₂(aq) + H₂S(g)
Similarly, In both cases, the total mass of the reactants is greater than the mass of the empty flask and empty beaker (400 g + 250 g = 650 g), so the reaction will consume some of the reactants and the final mass of the products will be less than the total mass of the reactants.
In conclusion, the mass of the product depends on the amount of reactants and the stoichiometry of the reaction.
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write the balanced chemical equation for the reaction of each of the following carboxylic acids with naoh: benzoic acid
Answers
The balanced chemical equation for the reaction of benzoic acid (C6H5COOH) with NaOH is: C6H5COOH + NaOH → C6H5COONa + H2O.
In this reaction, the NaOH reacts with the carboxylic acid (benzoic acid) to form the corresponding salt (sodium benzoate) and water.
The balanced chemical equation for the reaction of benzoic acid with NaOH.
The balanced chemical equation for the reaction of benzoic acid (a carboxylic acid) with sodium hydroxide (NaOH) is:
C6H5COOH + NaOH → C6H5COONa + H2O
Here's a step-by-step explanation:
1. Benzoic acid (C6H5COOH) reacts with sodium hydroxide (NaOH).
2. The carboxylic acid group (COOH) of benzoic acid loses a hydrogen ion (H+) to form the carboxylate ion (C6H5COO-).
3. The sodium ion (Na+) from NaOH binds with the carboxylate ion (C6H5COO-) to form sodium benzoate (C6H5COONa).
4. The hydrogen ion (H+) from benzoic acid and the hydroxide ion (OH-) from NaOH combine to form water (H2O).
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(26) CCC Patterns Recall that elements above and below each other in the periodic
table have similar physical and chemical properties. What do you think might
account for these similar properties? Explain.
Answers
The reason why the elements above and below each other may be similar is that they have the same number of valence electrons.
What is the periodic table?Since the beginning of chemistry, there have always been a need for the systematization of the elements. There are currently about a hundred and twenty elements in the periodic table. The elements that can be found in the periodic able are arranged in groups and periods.
The groups are the vertical columns that we find in the periodic table while the periods are the horizontal rows that we find in the periodic table. All the elements in the same group have the same number of valence electrons while the elements in the same period have the same number of shells.
Thus, the elements that are above and below each other in the periodic
table have similar physical and chemical properties because they have the same number of valence electrons.
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A radioactive substance decreases by 65% each hour. Find the hourly decay factor. The hourly decay factor is__
Answers
A radioactive substance decreases by 65% each hour. Find the hourly decay factor. The hourly decay factor is 0.35.
Chemicals in the class of radionuclides (also known as radioactive materials) have unstable atomic nuclei. They become stable by undergoing modifications in the nucleus (spontaneous fission, alpha particle emission, neutron conversion to protons, or the opposite).
A radioactive atom will naturally emit radiation in the form of energy or particles in order to transition into a more stable state. The difference between radioactive material and the radiation it emits must be made.
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PLLLZZZZZZZZZZZZZZZ HELPPPPPP MEEEEEEEEEEEE THHHXXX
