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1 year ago

The decay of a living things allows chemical elements to be lost.

Chemistry

1 answer:

Lelu [443]1 year ago

8 0

Answer: is is true

Explanation:

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How do you convert between the mass and the number of moles of a substance?

Ksivusya [100]

To convert from grams to moles, you divide the number of grams by the molar mass To convert from moles to grams, you multiply by the molar mass. You must first calculate the molar mass of the substance

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3 years ago

onsider the reaction, NO2(g) + CO(g) → NO(g) + CO2(g), for which the rate law has been determined to be: Rate = k[NO2]2[CO]. Whi

nlexa [21]

Answer:

The correct answer is option D.

Explanation:

Rate of the reaction is a change in the concentration of any one of the reactant or product per unit time.

$NO_2(g) + CO(g)\rightarrow NO(g) + CO_2(g)$

Rate of the reaction:

$R=-\frac{1}{1}\times \frac{d[NO_2]}{dt}=-\frac{1}{1}\times \frac{d[CO]}{dt}$

Rate of decrease in nitrogen dioxide concentration is equal to the rate of decrease in carbon monoxide.

Given rate expression of the reaction:

$R = k[NO2]^2[CO]$

Rate of the reaction on doubling concentration of nitrogen dioxide and carbon monoxide : R'

$R'=k(2\times [NO_2])^2(2\times [CO])=8\times k[NO2]^2[CO]=8R$

Doubling the concentrations of nitrogen dioxide and carbon monoxide simultaneously will increase the rate of the reaction by a factor of eight.

Hence, none of the given statements are true.

6 0

3 years ago

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What is the term for a fine grained soil deposited by the wind

balandron [24]

I think it is called a loess. Please correct me if I am wrong.

4 0

2 years ago

Neutral atoms of all the isotopes of the same element have

Viktor [21]

Answer:

electron = proton

Explanation:

6 0

2 years ago

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0.00105 liters is the same as how many cm and ml

Ainat [17]

The answer is 1.05 cubic centimeters and 1.05 mL (1 cubic centimeter is equal to 1 mL)

8 0

3 years ago