Chemical Reactions

Chemical Reactions

Professional Development

10 Qs

quiz-placeholder

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Chemical Reactions

Chemical Reactions

Assessment

Quiz

English, Chemistry, Science

Professional Development

Hard

Created by

Irene Lahoz

Used 91+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a chemical reaction?

a process of bonding substances together

a process that leads to filled valence shells

a process that releases or consumes energy

all of the choices

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a chemical equation?

a diatomic molecule

a shorthand representation of a chemical bond

a shorthand representation of a chemical reaction

a substance

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are substances on the left side of a chemical equation called?

electrons

groups

products

reactants

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are substances on the right side of a chemical equation called?

electrons

groups

products

reactants

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What does the number in front of the molecular symbol mean?

It shows that there is only one molecule present in a reaction

It shows the number of molecules in the reaction

It shows the number of reactions that took place

All of the choices

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Can the subscripts in a chemical reaction be changed?

Cannot be determined

Maybe, depending on the energy released

No, they define the molecules in the reaction

Yes, to balance the equation

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Chemical reactions proceed under the law of definite proportions:

always

cannot be determined

never

sometimes

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