The reaction 2HI(g)→H2(g)+I2(g) has rate constant 8.31×10−5Lmol s at 565 K and rate constant 1.91×10−3Lmol s at 665 K. What is the activation energy for the reaction based on the Arrhenius equation? Ea=−R[lnk2−lnk1(1T2)−(1T1)]
Answers
The activation energy for the reaction 2HI(g) → H₂(g) + I₂(g) has a rate constant of 8.31 × 10⁻⁵ Lmol s at 565 K and a rate constant of 1.91 × 10⁻³ Lmol s at 665 K based on the Arrhenius equation is 172.7 kJ/mol.
To find the activation energy for the reaction 2HI(g) → H₂(g) + I₂(g), we can use the Arrhenius equation:
k = A * \(e^{(-Ea/Rt)}\)
where k is the rate constant, A is the pre-exponential factor, Ea is the activation energy, R is the gas constant (8.314 J/mol*K), and T is the temperature in Kelvin.
We can rearrange the equation to solve for Ea:
ln(k₁/k₂) = (Ea/R) * (1/T₂ - 1/T₁)
where k₁ and k₂ are the rate constants at the two temperatures in the problem.
Plugging in the values:
ln(1.91 x 10⁻³ / 8.31 x 10⁻⁵) = (Ea/8.314) * (1/665 - 1/565)
Simplifying:
ln(22.9916) = (Ea/8.314) * (0.0019)
Ea = -8.314 * ln(22.9916) / (0.0019)
Ea = 172.7 kJ/mol
Therefore, the activation energy for the reaction 2HI(g) → H₂(g) + I₂(g) is 172.7 kJ/mol.
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Related Questions
How do you balance Sb+I2=SbI3 show work please
Answers
Answer:
2Sb + 3I₂ → 2SbI₃
Explanation:
The reaction expression we need to balance is:
Sb + I₂ → SbI₃
To balance this expression, we need to assign the variables a,b and c to each specie as the coefficient that will balance the expression.
aSb + bI₂ → cSbI₃
Conserving Sb : a = c
I : 2b = 3c
let a = 1, c = 1, b = \(\frac{3}{2}\)
Multiply through by 2;
a = 2, b = 3 and c = 2
2Sb + 3I₂ → 2SbI₃
how many electrons does titanium have in the D orbital in its ground state electron configuration
2
3
0
1
Answers
Answer:
Your answer would be 2
Explanation:
The electron configuration for titanium is 1s22s22p63s23p63d24s2, according to the Jefferson Lab website. The element's 22 electrons are arranged in four energy levels surrounding the nucleus of the atom.
Electrons orbit the nucleus in energy levels, which are also called shells. These energy levels contain sub-shells, or orbitals, each of which holds a certain number of electrons. By looking at the electron configuration for titanium, it is possible to determine how its electrons are arranged.
There are two electrons in the s orbital of the first energy level. The second level contains eight electrons, with two in the s orbital and six in the p orbital. There are electrons in three orbitals of the third energy level. There are two in the s orbital, six in the p orbital and two in the d orbital. The fourth energy level has two electrons in its s orbital.
The study of chemicals and bonds is called chemistry.
The correct answer is 2.
The representation of electrons in the shell is called electronic configuration. The electron configuration for titanium is \(1s^22s^22p^63s^23p^63d^24s^2\),
Electrons orbit the nucleus in energy levels, which are also called shells.
These energy levels contain as follows:-
Sub-shellsOrbitals,Each of which holds a certain number of electrons. By looking at the electron configuration for titanium, it is possible to determine how its electrons are arranged. There are two electrons in the s orbital of the first energy level. The second level contains eight electrons, with two in the s orbital and six in the p orbital.
There are electrons in three orbitals of the third energy level. There are two in the s orbital, six in the p orbital, and two in the d orbital. The fourth energy level has two electrons in its s orbital.
Hence, the correct answer is A that is 2.
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Which process was occurring during some of the given
stages that resulted in the formation of heavier elements
from lighter elements?
A) radiation
B) radioactive decay
C) nuclear fusion
D) conduction
Answers
nuclear fusion because they are fusing atoms together therefore increasing the number of protons therefore increasing the atomic weight making a heavier atom
Hope I could help.
how many electrons does Mg-3 have?
PLEASE HELP
Answers
Answer:
A magnesium ion mg-2 has A 24 protons and 22 electrons
The ability to exist in both an oxidized and reduced state is characteristic of:
A. adenosine triphosphate (ATP)
B. electron carriers
C. regulatory enzymes
D. peptide hormones
Answers
The ability to exist in both an oxidized and reduced state is characteristic of B. electron carriers.
Electron carriers, also known as redox carriers, are molecules that can accept or donate electrons during cellular respiration or photosynthesis.
These carriers play a crucial role in the transfer of energy from one molecule to another by shuttling electrons between the electron donors and acceptors.
The most common electron carriers in cells are NAD+ (nicotinamide adenine dinucleotide) and FAD (flavin adenine dinucleotide), which are involved in the electron transport chain in mitochondria. NAD+ accepts two electrons and a hydrogen ion (H+) to form NADH, which can then donate the electrons to the electron transport chain. FAD accepts two electrons and two H+ ions to form FADH2, which also donates electrons to the electron transport chain.
Other electron carriers include cytochromes, which are heme-containing proteins, and quinones, which are lipid-soluble molecules that can diffuse through membranes. These electron carriers play important roles in various metabolic pathways such as the Krebs cycle and the electron transport chain.
In summary, electron carriers are essential molecules that enable the transfer of energy in cells by accepting and donating electrons. Their ability to exist in both an oxidized and reduced state is what allows them to participate in these reactions.
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a solution of cacl2 in water forms a mixture that is 28.0% calcium chloride by mass. if the total mass of the mixture is 663.2 g, what masses of cacl2 and water were used?
Answers
The mass of calcium chloride and water used to form a 28.0% calcium chloride solution with a total mass of 663.2 g are 189.54 g and 473.66 g, respectively.
Then find the masses of calcium chloride and water used to form the solution, we first need to determine the mass of calcium chloride in the solution. Since the solution is 28.0% calcium chloride by mass, we can calculate the mass of calcium chloride as follows:
Mass of calcium chloride = 0.28 x 663.2 g = 185.62 g
Next, we can use the mass of calcium chloride to calculate the mass of water in the solution:
Mass of water = Total mass - Mass of calcium chloride
Mass of water = 663.2 g - 185.62 g
Mass of water = 477.58 g
Therefore, the mass of calcium chloride and water used to form the solution are 189.54 g and 473.66 g, respectively.
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The combining power of an element is called ?
A. coefficient
B.subscript
C.periodicity
D.valence number
Answers
Answer:
D
Explanation:
Valency is the combining power of an element
An Amazon box weighs 1000 grams and has a volume of 125 ml, what is its density
Answers
Answer:
80
Explanation:
ignore
Explain what happens to a material's heat capacity (under constant pressure) during phase transition.
Answers
The heat capacity of a material changes during phase transition under constant pressure because the temperature of the material does not change during phase transition.
The heat that is supplied to the material does not cause the temperature to increase, but rather causes the phase of the material to change. During the phase transition of a solid to a liquid, the temperature remains constant even when heat is added to the material. The added heat energy is used to break the intermolecular bonds that hold the solid together, which results in the solid changing into a liquid.
This means that during the phase transition from a solid to a liquid, the heat capacity of the material under constant pressure will increase because the added heat energy is being used to break the intermolecular bonds instead of increasing the temperature.
Furthermore, during the phase transition from a liquid to a gas, the heat capacity of the material under constant pressure will also increase because the added heat energy is being used to break the intermolecular bonds that hold the liquid together and to overcome the attractive forces between the gas molecules. This causes the liquid to turn into a gas.
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pretend you have an container of salt and a container of salt and a container of trail mix , how could `you physically separate the sodium and the cholorine from the salt ? how could you seperate the pieces in the trail mix
Answers
Pretend you have an container of salt and a container of salt and a container of trail mix , separate the sodium and the chlorine from the salt is trail mix and sodium and chlorine from the electrolysis.
We known that the mixture is the compound in which there are two or more chemical compound are present. The trail mix is the heterogenous mixture. A heterogenous mixture is the mixture of uneven distribution of the components in the mixture. The given container a salt and a trial mixture. the trial mixture is the mixture of peanuts and the other seeds. we can physically separate the mixture of salt and trial mixture by Handpicking method. And we can separated the sodium and chlorine by the process of electrolysis.
Pretend you have an container of salt and a container of salt and a container of trail mix , separate the sodium and the chlorine from the salt is sodium and chlorine from the electrolysis.
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1. Assume that you are hired to serve as a consulting team to Elijah. What counsel would you provide? 2. What elements in each step of the analytical problem-solving process are appropriate? Outline them for Elijah and provide them specifically for Elijah
Answers
We would counsel Elijah to thoroughly understand the problem, identify alternatives, evaluate options, make an informed decision, and implement and monitor the chosen solution, while emphasizing effective communication and collaboration throughout the process.
As a consulting team for Elijah, we would provide the following counsel:
Understand the Problem: We would advise Elijah to thoroughly understand the problem or challenge he is facing. This involves gathering all the relevant information, clarifying any ambiguities, and defining the objectives clearly. Elijah should assess the root cause of the problem and identify any underlying issues.
Identify Alternatives: We would encourage Elijah to generate a range of potential solutions or strategies. This could involve brainstorming sessions and seeking input from relevant stakeholders. Elijah should consider both conventional and innovative approaches to address the problem.
Evaluate Options: We would help Elijah analyze and evaluate each alternative based on predetermined criteria and objectives. This includes assessing the feasibility, risks, costs, and benefits associated with each option. Elijah should consider the short-term and long-term implications of each alternative.
Make a Decision: We would support Elijah in making an informed decision by weighing the pros and cons of each option. Elijah should consider the potential outcomes and their alignment with his goals and values. We would encourage him to seek input from key stakeholders and consider their perspectives.
Implement and Monitor: We would advise Elijah to develop an action plan for implementing the chosen solution. This involves assigning responsibilities, setting timelines, and monitoring progress. Regular review and evaluation of the implemented solution will help identify any necessary adjustments or improvements.
Throughout the process, effective communication, collaboration, and adaptability are crucial elements for Elijah to successfully navigate the problem-solving process and achieve his desired outcomes.
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A sphere of radius 0.457 m, temperature 32.2 ∘
C, and emissivity 0.924 is located in an environment of temperature 82.9 ∘
C. At what rate does the sphere (a) emit and (b) absorb thermal radiation? (c) What is the sphere's net rate of energy exchange? (a) Number (b) Number Units Units
Answers
a) The sphere emits thermal radiation at a rate of 139.75 Watts.
b) The sphere absorbs thermal radiation at a rate of 37.66 Watts.
c) The sphere's net rate of energy exchange is 102.09 Watts.
What are the rates of thermal radiation emission, absorption, and net energy exchange for the sphere?To calculate the rates of thermal radiation emission and absorption, we can use the Stefan-Boltzmann law, which states that the rate of thermal radiation emitted or absorbed by an object is proportional to its surface area, temperature, and the Stefan-Boltzmann constant.
a) The rate of thermal radiation emitted by the sphere can be calculated using the formula:
Emitting Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(temperature^4 - environment\ temperature^4\))
Plugging in the given values:
Emitting Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((32.2 + 273.15)^4 - (82.9 + 273.15)^4)\)
Emitting Rate ≈ 139.75 Watts
b) The rate of thermal radiation absorbed by the sphere can be calculated in a similar way but using the environment temperature as the object's temperature:
Absorbing Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(environment\ temperature^4 - temperature^4\))
Plugging in the given values:
Absorbing Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((82.9 + 273.15)^4 - (32.2 + 273.15)^4)\)
Absorbing Rate ≈ 37.66 Watts
c) The net rate of energy exchange is the difference between the emitting rate and the absorbing rate:
Net Rate = Emitting Rate - Absorbing Rate
Net Rate = 139.75 Watts - 37.66 Watts
Net Rate ≈ 102.09 Watts
Therefore, the sphere emits thermal radiation at a rate of 139.75 Watts, absorbs thermal radiation at a rate of 37.66 Watts, and has a net rate of energy exchange of 102.09 Watts.
Note: The units for all the rates are Watts.
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PLEASE ANSWER!!! QUICK
2HCI + CaCO3 --> CO2 + H2O + CaCL2
What is the ratio of hydrochloric acid to calcium carbonate in the reaction?
A. 1 HCI: 2CaCO3
B. 2 HCI: 1CaCO3
C. 1 HCI: 1CaCO3
D. 2 HCI: 0.5CaCO3
Answers
Explanation:
Answer:
Explanation:
it's B. 2 HCI: 1 CaCO3 :)
which two activities can a student perform to show the formation of soil through chemical processes?
Answers
There are several activities that a student can perform to show the formation of soil through chemical processes. Here are two examples:
Soil pH experiment: In this activity, the student can measure the pH of soil samples collected from different locations or layers. The pH of the soil is an indicator of the soil's acidity or alkalinity, which is influenced by chemical processes such as the breakdown of organic matter and the weathering of minerals. By comparing the pH of different soil samples, the student can observe how chemical processes can affect the properties of soil.
Soil horizons experiment: In this activity, the student can create a soil profile by layering soil samples collected from different depths in a jar or container. The student can then observe the different layers, or horizons, that form in the soil profile over time. These horizons are formed through a variety of chemical processes, including the weathering of minerals, the breakdown of organic matter, and the leaching of nutrients. By observing these horizons, the student can see how chemical processes contribute to the formation and development of soil.
It's important to note that these are just a couple of examples, and there are many other activities that a student can perform to demonstrate the formation of soil through chemical processes.
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There are several activities that a student can perform to show the formation of soil through chemical processes. Here are two examples:
Soil pH experiment: In this activity, the student can measure the pH of soil samples collected from different locations or layers. The pH of the soil is an indicator of the soil's acidity or alkalinity, which is influenced by chemical processes such as the breakdown of organic matter and the weathering of minerals. By comparing the pH of different soil samples, the student can observe how chemical processes can affect the properties of soil.
Soil horizons experiment: In this activity, the student can create a soil profile by layering soil samples collected from different depths in a jar or container. The student can then observe the different layers, or horizons, that form in the soil profile over time. These horizons are formed through a variety of chemical processes, including the weathering of minerals, the breakdown of organic matter, and the leaching of nutrients. By observing these horizons, the student can see how chemical processes contribute to the formation and development of soil.
It's important to note that these are just a couple of examples, and there are many other activities that a student can perform to demonstrate the formation of soil through chemical processes.
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sand is a particulate in nature
Answers
Answer:
\(\color{Blue}\huge\boxed{Answer} \)
Sand is a granular material composed of finely divided rock and mineral particles. Sand has various compositions but is defined by its grain size. Sand grains are smaller than gravel and coarser than silt.
What is the total number of atoms in 1.0 mole of CO2?
3.0 x 10^23
18 x 10^23
12 x 10^23
1.5 x 10^23
Answers
roughly how long is the entire life cycle of a star like our Sun? Explain how
you worked it out.
Answers
Answer:
Star is a cycles two
Sana maka tolong
8. Skin cancer is a disease that occurs when skin cells grow in an uncontrolled way. It can be caused by UV
light, which can alter the genetic sequence of skin cells. Which choice below best describes how UV
light might cause skin cancer?
a. UV light changes the genetic code that makes the proteins in the skin cell. The new code
changes the structure and function of these proteins. When the proteins that control cell
growth change in a way that makes them no longer work, cancer is the result.
b. UV light changes the shape of the proteins in the skin cells. These proteins change the
genes in the cell. This makes the cell grow uncontrollably resulting in cancer.
C. UV light makes skin cells grow faster. Overtime, the skin cells adapt to the UV light by
growing faster and faster. Eventually they grow so fast that their growth is no longer
controlled, this results in cancer.
d. None of the above.
Answers
Answer:
Explanation:
I think none of the above, because when caused by a UV light it damages the cells. And if enough builds up overtime it causes uncontrollable growth and leads to skin cancer.
Hope that helped? It might be another answer honestly.
Why are noble gases called "safe" gases?
Answers
Answer:
Noble gases are called "safe" gases because they are inert.
General Formulas and Concepts:
Reading a Periodic TableChemical Properties of Noble GasesExplanation:
Because Noble Gases have filled their outer shell electrons fully, they tend not to form compounds with other elements or react with others to produce another compound.
Take Ne (neon) for instance. It's electron configuration is 1s²2s²2p⁶. The outer most shell is the 2p sublevel, and according quantum numbers, the 2p sublevel only has 3 spaces for 2 electrons each that it can hold. Therefore, Ne has a full outer shell and no electron spots to create a bond with other elements.
Many sidewalks have areas that are uneven or even completely broken. This is usually caused by
A. tree roots wedging underneath
B. lichen living on the surface.
C. oxidation of the cement due to oxygen.
D. contact with other rocks.
Answers
Answer:
C
Explanation:
Which among the following is a renewable source of energy?
A: Battery
B: Peat
C: Wind
D: All above
PLEASE HELP!!
Answers
Answer:
Hello There!!
Explanation:
The answer is C.Wind.
hope this helps,have a great day!!
~Pinky~
Answer:
Hello! Your answer is D) All above
Explanation:
Hope I helped! Ask me anything if you have any questions. Brainiest plz!♥ Hope you make a 100%. Have a nice morning! -Amelia♥
name two bases which react with dillute sulfuric acid to give zinc sulfate
Answers
Answer:
Zinc Carbonate
Zinc Nitrate
Explanation:
10,000,000
pH=0
Battery Acid
Concentrated Hydrofluoric Acid
1,000,000
pH=1
Hydrochloric acid secreted
by stomach lining
100,000
pH=2
Lemon juice
Gastric acid
Vinegar
10,000
pH=3
Grapefruit
Orange juice
Soda
1,000
pH=4
Acid rain
Tomato juice
100
pH=5
Soft drinking water
Black coffee
10
pH=6
Urine
Saliva
1
pH=7
Pure water
1/10
pH=8
Sea water
1/100
pH=9
Baking soda
1/1,000
pH=10
Great Salt Lake
Milk of magnesia
1/10,000
pH=11
Ammonia solution
1/100,000
pH=12
Soapy water
1/1,000,000
pH=13
Bleaches
Oven cleaner
1/10,000,000
pH=14
Liquid drain cleaner
Many common household substances may be classified as acids or bases. According to the pH scale,
A)
baking soda is a weak base while bleach is a strong base.
B)
coffee is a weak acid while drain cleaner is a strong acid.
C)
oven cleaner is a weak acid while battery acid is a strong acid.
D)
soft drinking water is a weak base while soapy water is a strong base
Answers
Based on the given pH scale, we can only conclude that baking soda is a weak base (option A).
According to the given pH scale, we can determine the strengths of various substances as acids or bases. Let's analyze each option:
A) Baking soda is listed with a pH of 9, which indicates it is a weak base. Bleach is not specifically mentioned in the given pH scale, so we cannot determine its classification based on the information provided. Therefore, option A cannot be concluded.
B) Coffee is listed with a pH of 4, indicating it is a weak acid. Drain cleaner is listed with a pH of 14, which suggests it is a strong base. Thus, option B is incorrect.
C) Oven cleaner is not specifically mentioned in the given pH scale, so we cannot determine its classification. Battery acid, on the other hand, is listed with a pH of 0, which indicates it is a strong acid. Therefore, option C cannot be concluded.
D) Soft drinking water is listed with a pH of 5, indicating it is a weak acid. Soapy water is not specifically mentioned, so we cannot determine its classification based on the information provided. Hence, option D is incorrect.
In summary, based on the given pH scale, we can only conclude that baking soda is a weak base (option A). The information provided does not allow us to determine the strengths of bleach, oven cleaner, or soapy water.
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Which answer best describes atomic radius
Answers
Answer:
HEY THERE!!
Explanation:
The atomic radii increase, moving across a period to the left and down in a group
HOPE THIS HELPED HAVE A NICE DAY!!! <33
PLEASE HELP!! What direction do you predict the addition of a base to the solution containing bromophenol blue will drive the equilibrium? Explain your prediction in terms of Le Châtelier's principle.
Answers
Answer:
Below is the clarification of that same particular question.
Explanation:
Le Chatlier's theory states that whenever an equilibrium mechanism is disrupted by environmental influences, the program responds by changing the supplies information of its constituents in a somewhat way that the disturbance is invalidated and reaches a stable equilibrium during that disrupted stage, with concentrations of stability differently than ever before.Bromothymol blue seems to be a phenolic subs lone which always allows it to act throughout aqueous solutions as an acidic solution. Being such an acid (weak), it should not add to rapid, as well as introduces a balance with its accompanying but mostly disconnected form.For that kind of weak diprotic predictor, the standard economic statement can indeed be published as:
⇒ \(H_2In_(aq)\rightleftharpoons In^{2-} +2H^+\)
It could be conclusively proven from either the theory of Le Charlier whereby, that whenever a strong acid becomes applied, the full disorientation of one or the other, through equilibrium formation, induces an increase throughout the medium's proton concentrations.Likewise, it absorbs the protons throughout the media to split water that whenever a solution is added. So, particle concentration throughout the medium is decreasing. To accommodate for this transition, the equilibrium reacts by moving to the correct i.e. causing further dissociation of the optimistic predictor into their dianion through protons, thereby attempting to nullify that perturbation.Please help me do this question
Answers
How many pages is 5000 words? Double spaced, 5000 words is around 20 pages; single spaced about 10 pages. Now, if you're using an unconventional formatting or margins you could see different results, however, with standard word processor defaults and a 12 point Arial or Times New Roman font your output should be very similar. Examples of 5000 word count pages include college theses, dissertation research, or very comprehensive, in-depth blog posts.
Answer: 5000 words is 10 pages single spaced or 20 pages double spaced.
Pages by Word Count
Use our handy table to discover how many pages a given word count yields, single or double spaced, in Times New Roman or Arial 12 point font.
Word Count Pages (single spaced) Pages (double spaced) Font Size
250 WORDS ½ PAGE 1 PAGE 12 POINT
300 WORDS ⅔ PAGE 1⅓ PAGES 12 POINT
400 WORDS ⅘ PAGE 1⅗ PAGES 12 POINT
500 WORDS 1 PAGE 2 PAGES 12 POINT
600 WORDS 1⅓ PAGE 2⅔ PAGES 12 POINT
750 WORDS 1½ PAGES 3 PAGES 12 POINT
800 WORDS 1⅗ PAGES 3⅕ PAGES 12 POINT
1000 WORDS 2 PAGES 4 PAGES 12 POINT
1200 WORDS 2⅖ PAGES 4⅘ PAGES 12 POINT
1500 WORDS 3 PAGES 6 PAGES 12 POINT
2000 WORDS 4 PAGES 8 PAGES 12 POINT
2500 WORDS 5 PAGES 10 PAGES 12 POINT
3000 WORDS 6 PAGES 12 PAGES 12 POINT
3500 WORDS 7 PAGES 14 PAGES 12 POINT
4000 WORDS 8 PAGES 16 PAGES 12 POINT
5000 WORDS 10 PAGES 20 PAGES 12 POINT
6000 WORDS 12 PAGES 24 PAGES 12 POINT
7500 WORDS 15 PAGES 30 PAGES 12 POINT
8000 WORDS 16 PAGES 32 PAGES 12 POINT
10000 WORDS 20 PAGES 40 PAGES 12 POINT
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How Many Pages is 4000 Words?
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How many pages is 300 words? The answer is close to two-thirds of a page single spaced, and around one and one-third of a page double spaced.
How Many Pages is 400 Words?
How many pages does 400 words take? A word count of 400 words will result in around four-fifths of a page single spaced and and one and three-fifths of a page double spaced.
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Which compound is the most soluble in water?
Medium
A Chloroethane
B Ethanol
C Ethanal
D Ethylene glycol
Answers
Answer: B) ethanol
Explanation:
Due to its strong attraction with water molecules.
3rd law of thermodynamics..
2 Different Examples((Thnks))
Answers
Answer:
See explanation
Explanation:
The third law of thermodynamics states that "the entropy of a perfect crystal of a pure substance approaches zero as the temperature approaches zero" (Wikipedia).
One example of the third law of thermodynamics has to do with steam. Steam is gaseous water. Since it is a gas, its molecules are free to move around therefore its entropy is high. When the temperature of the steam is decreased below 100 degrees, the molecules of steam loose energy and turn into liquid water and do not move as freely as they did in the gaseous state. If the temperature is further decreased to yield ice at zero degrees, the molecules of water are "frozen" in their positions and the entropy of the system decreases to zero.
Also, the ions in ionic crystal solids move around when the substance is in solution or in molten state hence the substance conducts electricity. When the ionic substance is in solid state, the ions do not move about and the entropy of the solid system tends towards zero.
your friend, a male soccer player weighing 86 kg, is trying to determine how many carbohydrates should be consumed 2 hours before his soccer game. based on his weight, how many grams of carbohydrate would you recommend for your friend 2 hours before the soccer game?A. 86-344 gramsB. 129-286 gramsC. 150-377 gramsD. 172-425 grams
Answers
It is advised that your friend take 172-425 grams of carbs, dependant on his size of 86 kg, two hours before to his soccer match. The ideal choice is D.
What makes a carbohydrate healthy?As a result of the vitamins, nutrients, and dietary fiber they provide, full grain, berries, and vegetables are regarded as healthy carbohydrates. Contrarily, processed or refined carbohydrates like white spaghetti, sweetened beverages, and desserts have little to no nutritious benefit and therefore to be avoided altogether.
What purposes do carbs serve?Carbohydrates carry out a variety of essential functions in your body. They are the main source of fuel for your brain's calorific values and give you energy for daily chores.
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Ocean water is a combination of salt and water. Which of the following best describes the composition of ocean water? It is an element, since water is found in all living things It is a suspension, since particles can be found in ocean water It is a compound, since it results from the combination of elements It is a solution, since it is made up of one substance dissolved in another
Answers
Answer:
The ocean is made up of salt water, which is a combination of fresh water, plus minerals collectively called "salts." These salts aren't just sodium and chloride (the elements that make up our table salt), but other minerals such as calcium, magnesium, and potassium, among others.
Explanation:The answer is since particles can be found in ocean water It is a compound, since it results from the combination of elements It is a solution