What do the coefficients located before certain molecules in each chemical equation represent?

1 answer:

6 0

It represents the number of moles required of that molecule to balance the chemical equation, which means to have the reaction chemically happen and goes to completion.

For example:
CH4 + O2 --> H2O + CO2 that is not balanced

with the coefficients located
CH4 + 2O2 --> 2H2O + CO2 now with the coefficients the number of oxygen and hydrogen on each side are equal

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balu736 [363]

Answer

Explanation:

Protons would be the first answer since protons have a + charge. Neutrons would be second sicne neutrons have a neutral or 0 charge. Electrons would be the last since electrons have a - charge.

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4 years ago

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Compound 1: 76.0% ru and 24.0% o (by mass), compound 2: 61.2% ru and 38.8% o (by mass). part a what is the empirical formula for

attashe74 [19]

To solve for the empirical formula, we write first all the data.

Given:
Compound 1: 76 wt% Ru and 24wt% O
Compound 2: 61.2 wt% Ru and 38.8 wt% O

Required: Empirical Formula of Compound 1

Solution:
Assume total mass of the compound is 100 g

Solving for Compound 1,

76 g Ru x <u>1 mol Ru </u> = 0.75195 mol Ru
101.07 g Ru

24 g O x <u>1 mol O </u> = 1.5 mol O
16 g O

Then, divide each mole with the smallest number of moles calculated

Ru = 0.75195 mol/0.75195 mol = 1
O = 1.5 mol/0.75195 mol = 2

Therefore, the empirical formula for Compound 1 is RuO2.

<em>ANSWER: RuO2</em>

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1. list at least two possible sources of error from the experiment. would these errors result in an overestimation or an underes

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2) When the reaction vessels are not properly cleaned

<h3>What is error in an experiment?</h3>

Error could occur in an experiment when values are misread. The error could be random error or a systematic error.

The major ways in which an error can occur in the estimation of concentration of acetic acid in the vinegar are;

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2) When the reaction vessels are not properly cleaned

Learn more about errors in experiment:brainly.com/question/14149934

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