Describing Chemical Reactions

Question 1

A (the entire green box):

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chemical equation

Question 2

B (the blue box):

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reactants

Question 3

C (the arrow):

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reacts to form

Question 4

D (the number):

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coefficient

Question 5

E (the purple box):

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products

Question 6

What are the purposes of a chemical equation? Check all that apply.to show how substances in a chemical reaction interactto shorten the explanation of a chemical reactionto make chemical reactions easier to recognizeto help keep track of atoms in a chemical reactionto show just the products of a chemical reaction

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to show how substances in a chemical reaction interact; to shorten the explanation of a chemical reaction; to help keep track of atoms in a chemical reaction

Question 7

There are nitrogen atoms on the product side.

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2

Question 8

The inflation of airbags is due to the breakdown of a single chemical substance into two separate substances.Two molecules of sodium azide (NaN3) break down into sodium (Na) and nitrogen gas (N2) during the reaction.How many sodium (Na) atoms are produced in the reaction?

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2 Na atoms

Question 9

There are Fe (iron) atoms.

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2

Question 10

There are hydrogen atoms on the reactant side.

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6

Describing Chemical Reactions Answers

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