W15 Quiz Practice Balancing Equations (OHDELA 23-24)

Test Description: Balancing Eq practice

Instructions: Answer all questions to get your test result.

1) What is a process where one or more elements or compounds are changed into one or more different substances?

2) In all chemical reactions atoms are______.

3) In a chemical reaction the mass and _____ of atoms that make up the reactants must be equal to the mass and types of atoms in the products.

4) Chemicals present prior to the reaction taking place

5) Chemicals remaining once the reaction is complete

6) What is placed on the left side of a chemical equation?

7) What is placed on the right side of a chemical equation?

8) Which term does not describe the Arrow in a chemical equation?

9) A chemical ___, or formula equation, represents what happens in a chemical reaction.

10) A number placed before a molecule that tells us how many of those molecules we have in the formula.

11) A number placed after an element and below the line that tells us how many atoms of that element are in the molecule.

12) We can ____ add a coefficient in front of a chemical formula.

13) We cannot change or add any ____.


*select an answer for all questions

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