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MA_775_DIABLO [31]
3 years ago
15

Which of these represent an unbalanced equation with the correbt chemical formuals

Chemistry
1 answer:
marta [7]3 years ago
7 0

i can't give you a full answer to the lack of info, but everything goes somewhere. take the making of water, for instance. 2 Hydrogen and 1 Oxygen <u>must</u> equal H2O (2 parts hydrogen and 1 part oxygen) after being made.

Long story short: what goes in must have the same amount of atoms after the chemical reaction.

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What is the percent yield of O2 if 10.2 g of O2 is produced from the decomposition of 17.0 g of H2O?
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The balanced chemical reaction will be:

2H2O = 2H2 + O2

<span>We are given the amount of water used in the decomposition reaction. This will be our starting point.</span>

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5 0
3 years ago
Read 2 more answers
The following reaction shows calcium chloride reacting with silver nitrate.
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<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

CaCl₂ + 2AgNO₃ → 2AgCl + Ca(NO₃)₂

MW AgNO₃ : 107.9+14+3.16=169.9

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\tt \dfrac{2}{169.9}=0.012

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To change only one variable which is very important than to test the experiment to match the hypothesis again, I think. It’s been a while since I was on that lesson‍♀️
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