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2 years ago

Choose all of the options that demonstrate how humans are impacting the water cycle.

Chemistry

1 answer:

Fantom [35]2 years ago

5 0

Answer:

A.) Air pollutants wash onto land and water bodies from precipitation

C.) Storm water runoff carries pollution

I hope I helped! ^-^

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HI decomposes to H2 and I2 by the following equation: 2HI(g) → H2(g) + I2(g);Kc = 1.6 × 10−3 at 25∘C If 1.0 M HI is placed into

dsp73

Answer: The concentration of hydrogen gas at equilibrium is 0.037 M

Explanation:

We are given:

Initial concentration of HI = 1.0 M

The given chemical equation follows:

$2HI(g)\rightleftharpoons H_2(g)+I_2(g)$

Initial: 1.0

At eqllm: 1.0-2x x x

The expression of $K_c$ for above equation follows:

$K_c=\frac{[H_2][I_2]}{[HI]^2}$

We are given:

$Kc=1.6\times 10^{-3}$

Putting values in above expression, we get:

$1.6\times 10^{-3}=\frac{x\times x}{(1.0-2x)^2}\\\\x=-0.043,0.037$

Neglecting the negative value of 'x' because concentration cannot be negative

So, equilibrium concentration of hydrogen gas = x = 0.037 M

Hence, the concentration of hydrogen gas at equilibrium is 0.037 M

6 0

3 years ago

What statements are always true about limiting reactants?

alisha [4.7K]

Answer:

5.The limiting reactant is completely used up in the reaction

Explanation:

The limiting reactant is completely used up in the reaction is the correct answer because a limiting reactant is a reactant in chemical reaction that is completely consumed or used up in the chemical reaction. Limiting reactant when it is completely used up limits the amount of products that will be formed. The reaction will be halted or will stop when the limiting reactant is totally used up.

7 0

2 years ago

Write down any four uses of solution .I will mark him\her as brilliant

frosja888 [35]

Answer:

because it will help u

because it will make u to understand the question very well

6 0

3 years ago

4. Which of the following organic molecules are isomers?

KengaRu [80]

The following organic molecules are isomers CH3CH₂CH₂CH3. Option A.

All organic compounds have isomers. Isomers mean that they have the same molecular formula but different configurations. The connectivity of a connection ultimately determines its functionality. For example, the same molecular formula can be used to identify alcohols or ethers.

Isomers are molecules that have the same molecular formula but differ in the arrangement of their atoms in space. This excludes all other configurations by rotating the molecule as a whole or around specific bonds. In organic chemistry, isomers are molecules that have the same molecular formula but differ in the structural or spatial arrangement of the atoms within the molecule.

Learn more about Organic molecules here:-brainly.com/question/26556885

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1 year ago

Besides using some measure of science, alchemists resorted to using _________ to do what science seemed unable to accomplish

WARRIOR [948]

Alchemists used science together with magic to accomplish tasks.

6 0

3 years ago

Read 2 more answers