104 Equilibrium Constant 2
The toxic gas phosgene decomposes to a limited extent to carbon monoxide and chlorine at a certain temperature T K
according to the following equation:
COCI₂(g) CO(g) + Cl₂(g)
The equilibrium constant, Kc, is 0.00045 at this temperature.
What is the equilibrium constant for the reverse reaction?
Give your answer with 2 significant figures in the exponential form, for example, 1.5e3 for 1500.

Nuclear changes involves changes in the composition of the nucleus of atoms with the release of large amounts of energy.

Nuclear changes are changes which occur in the nucleus of atoms of elements.

Nuclear changes involves radioactive decays to give radiation and energy spontaneously known as radioactivity.

In this type of nuclear change no energy is required to start the reaction but large amount of energy are released.

Nuclear changes can also involve splitting of large nucleus into smaller nucleus of atoms known as nuclear fission or the formation of larger nucleus from the combination of two or more smaller nuclei known as nuclear fusion.

Energy is required to start nuclear fission and fusion but the energy released is far greater.

When compared with energy changes in chemical reactions, the energy released in nuclear reactions is far greater.

Therefore, nuclear changes involves changes in the composition of the nucleus of atoms with the release of large amounts of energy.

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Answer:

+7

Explanation:

It will become MORE positive   to  + 7

Answer:

Veggie and proteins

Explanation:

At least based on US govt. recommendation we have to have more veggies and proteins and then fruits.

https://en.wikipedia.org/wiki/MyPlate

Answer:

C. fruits and vegetables

Explanation:

i got it correct on my test i hope you do too. have a good day

Apply combine gas law

So

[tex]\\ \rm\Rrightarrow \dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{P1(0.722)}{296.3}=\dfrac{0.481(2.055)}{353}[/tex]

[tex]\\ \rm\Rrightarrow 0.0024P1=0.0028[/tex]

[tex]\\ \rm\Rrightarrow P_1=1.167atm[/tex]

D

The solution is undersaturated and precipitation of solid calcium sulfate will not occur.

Ksp stands for solubility product constant. The solubility product constant, Ksp​, is the equilibrium constant for a solid substance dissolving in an aqueous solution.

From the given information, the solubility product constant of calcium sulfate is smaller than the concentration of its solution, thus, the solution is undersaturated and precipitation of solid calcium sulfate will not occur.

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Answer: Compounds are composed of molecules bonded together.

The statement about compounds and molecules is correct is compounds are composed of molecules bonded together. Therefore, option C is correct.

The term compound is defined as a substance made from two or more different elements that have been chemically attached. Water, carbon dioxide and table salt are some examples of compounds.

A compound is form when two or more atoms form a chemical bond that links them together. As we know, there are two types of bonds are present that are ionic bonds and covalent bonds.

In an ionic bond, the atoms are linked together by the electrostatic forces of the attraction between ions of opposite charge. So,compounds are composed of molecules bonded together.

Thus, option C is correct.

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Answer: sulphur dioxide

Explanation:

Explanation:

When working with moles only, you will start by applying stoichiometry to determine how the reactants will affect your amount of products in this reaction. For this question, we will assume that other reactants are in infinite qualities, so therefore, it is the amount of aluminum that we will be concerned with. You need to figure out how much aluminum is in the specified amount of aluminum bromide, and then how much aluminum hydroxide that will be able to create. Make sure all your units cancel out!

9.24 mol AlBr3 x (1 mol Al / 1 mol AlBr3) x (1 mol Al(OH)3 / 1 mol Al) = 9.24 mol AlBr3

When you're working with mole ratios that involve grams to moles conversions, the first thing you want to do is calculate the molecular weight of each component you are being asked about. Because the question was given to you as words instead of chemical formulas, you will want to figure out the chemical formulas. For example, aluminum hydroxide is Al(OH)3 and aluminum bromide is AlBr3. To calculate molecular weight, you will want to consult a periodic table, find the molecular weight for each atom, and then calculate the correct sum of each molecular weight. Make sure you keep track of the number of each atom you have, i.e. 3 oxygen and 3 hydrogen for aluminum hydroxide.

Na = 22.990 g/mol

O = 15.999 g/mol

H = 1.008 g/mol

NaOH = 22.990 g/mol + 15.999 g/mol + 1.008 g/mol = 39.997 g/mol

Al = 26.982 g/mol

O = 15.999 g/mol

H = 1.008 g/mol

Al(OH)3 = 26.982 g/mol + (3 x 15.999 g/mol) + (3 x 1.008 g/mol) = 78.003 g/mol

Now, if you begin with an amount of NaOH in grams, you will first have to convert that to moles in order to use the mole ratio.

24 g NaOH x (1 mol NaOH / 39.997 g NaOH) = 0.600 mol NaOH

Now, you will have to account for the part of the sodium hydroxide that will be present in the aluminum hydroxide. In this case, it is the hydroxide (OH) portion of the formula. There is one mole of OH in each mole of NaOH, but there are 3 moles of OH in each mole of Al(OH)3. You will start with the 0.600 mol NaOH you know you have and then use the mole ratio.

0.600 mol NaOH x (1 mol OH / 1 mol NaOH) x (1 mol Al(OH)3 / 3 mol OH) = 0.200 mol Al(OH)3

Finally, when you are converting from grams to grams, you will have to find the molecular weight of both the reactant and the product, convert reactants in grams to reactants in moles, then use the mole ratio, then convert the moles of product back to grams of product. This time, you are concerned about the mole ratio of sodium, as that is the element that is in both chemical formulas.

Answer:

815.59

Explanation:

Assuming no heat lost to the Surrounding

Total heat lost by granite = Total heat gained by water

mc∆T of granite = mc∆T of water

m x 0.79 x (54.1 - 29.2) = 467.62 x 4.184 x (29.2 - 21.0)

m x 19.671 = 16043.48106

m = 16043.48106/19.671

= 815.59J

Answer:

14.0067 + 1.00794*4 + 35.453

Explanation:

Answer:

A salt is a neutral ionic compound. Let's see how a neutralization reaction produces both water and a salt, using as an example the reaction between solutions of hydrochloric acid and sodium hydroxide. The overall equation for this reaction is: NaOH + HCI → H2O and NaCl.

Explanation:

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[tex]\\ \orange{MaggieEve}[/tex]

Answer:

It contains 6.02*10^23 molecules

Explanation:

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[tex]\huge \underbrace \mathfrak{Answer}[/tex]

0.17 mol/l

Explanation:

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Molarity is the amount of moles of component present in certain volume of solution.

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Mole is a unit in chemistry i.e. 6.022×10²³ ions, atoms or molecules present in the substance.

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Weight of NaCl(m) = 4.865 grams

Volume(V) = 500ml = 0.5 liters

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1 mole of NaCl = 58g

So 4.865g of NaCl(n)

[tex] = \sf \frac{4.865}{58} = 0.084 \: moles[/tex]

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While

[tex] \frak{molarity = \frac{no \: of \: moles}{volume} } [/tex]

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Substituting the required values

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[tex] \sf \implies molarity = \frac{n}{V} \\ \\ \sf \implies molarity = \frac{0.084}{0.5} \\ \\ \ \boxed{ \tt{ \implies molarity = 0.17 \: mol \: {l}^{ - 1} }}[/tex]

Answer:

A rip current is least likely to affect Florida.

Explanation:

Since Florida is surrounded by bodies of water it would make sense for Tsunamis to occur frequently. Florida is also known to have drought problems and sometimes also wildfires. A rip current would probably affect Florida the least as it is also the least dangerous to society.

Answer:

tsunami

Explanation:

Answer:

their citrus clouds

Explanation:

I looked it up on the internet

The answer is 5892 moles of ATP will be produced from 12 kg of triacyclglycerols, and 43012 kcal energy will be generated by the utilization of the fat .

Triacylglycerols are formed by linking fatty acids with an ester linkage to three alcohol groups in glycerol.

Triacylglycerols are the form in which fat energy is stored in adipose tissue.

A camel hump contains 12kg = 12000 gm of Triacyclglycerols

a) It is given that there are 0.491 moles of ATP per gram of fat ,

So for 12000 gm of fat in camel hump 12000 * 0.491 moles of ATP will be produced .

= 5892 moles

Therefore Answer is 5892 moles .

If Hydrolysis of ATP releases 7.3 kcal/mole

so 5892 moles will produce 5892 * 7.3 kcal  

=43012 kcal energy will be generated by the utilization of the fat.

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Answer: baited.

Explanation:

Answer:

14.61 g NaCl

Explanation:

Molarity = moles / volume of solution (litres)

0.500 = moles / 0.500 L

moles = 0.25

Molar mass of NaCl is 58.44 g NaCl /1 mol NaCl.

0.25 moles NaCl x 58.44 g NaCl /1 mol NaCl

= 14.61 g NaCl

Answer:

 0.5

Explanation:

mol = mass  : MM SiO₂

mol = 0.0102 : 60 g/mol = 0.00017

molecules = 0.00017 x 6.02 x 10²³ = 1.0234 x 10²⁰

Answer:

On heating sodium hydrogen carbonate (NaHCO3). It decomposes to form sodium carbonate (Na2CO3), water (H2O) and carbon dioxide (CO2)

(ii) 2NaHCO3(s)Heatsodiumcarbonate(sodaash)Na2CO3(s)+CO2(g)+H2O(l)

Answer:

Explanation:

2H + + CO3 2- = H2CO3

Answer: 504.3

Explanation: Add the respective weights of each of the elements in the compound together.

Answer: The new volume of the balloon will be 4.45L

Explanation: We will solve this question through the concept of Charles's law. The law states that the volume of a gas is directly proportional to the absolute temperature, assuming the quantity of gas and pressure remain constant.

Answer: 2

Explanation:

Artificial transmutation occurs when nuclides are bombarded by particles like alpha particles or beta particles.

Answer:

4 covalent bonds

Explanation:

Each carbon atom can form as many as four covalent bonds with other carbon atoms as well as with other elements. Be able to explain why this is so. Be able to list the four main groups of organic molecules and their functions in living things.

The resin may be regenerated by washing it again with water and making it safe for use again.

Elution and regeneration are important processes in the treatment of water. The waste water is eluted through an ion exchange resin in which exchange of ions takes place.

The resin may be regenerated by washing it again with water and making it safe for use again.

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Answer:

The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body's tissues.

Explanation:

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Answer:

Co^2 blood or the scientific way to say it oxygen-poor blood

Explanation:

The energy comes from the sun, captured through photosynthesis.

Answer:

Carbon And the number of protons