Chemistry Unit 7 Quiz

Chemistry Unit 7 Quiz

10th - 12th Grade

9 Qs

quiz-placeholder

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Chemistry Unit 7 Quiz

Chemistry Unit 7 Quiz

Assessment

Quiz

Chemistry

10th - 12th Grade

Practice Problem

Medium

NGSS
HS-PS1-7, MS-PS1-2, HS-PS1-2

Standards-aligned

Used 119+ times

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To balance an chemical equation, one must change the:

coefficients
subscripts
superscripts
both coefficients and subscripts

Tags

NGSS.HS-PS1-7

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a chemical equation, the symbol (s) following a substance means:

the substance is aqueous
the substance is a solid
the substance has precipitated out of solution
both "the substance is a solid" and "the substance has precipitated out of solution" are correct

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A (g) after a molecule in a chemical equation signifies:

the substance is grounded
the substance is a gas
the substance is aqueous
the substance is found in a gnome

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A substance that speeds up a reaction without being changed by the reaction is a:

collision theory
precipitate
catalyst
reactant

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This symbold, →  means:

reverse
add heat
gas
yields

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The energy that is required for a reaction to begin is called:

activation energy
catalyst
collision theory
reactant process

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following reveals that a chemical reaction has occurred?

a substance dissolves in solution
a substance slows down
heat is emitted from a substance
there is no way to determine if a chemical reaction has occurred

Tags

NGSS.MS-PS1-2

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