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Chem Review

Authored by Scott Stoddart

Chemistry

6th - 8th Grade

NGSS covered

Used 23+ times

Chem Review
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41 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The basic unit of matter is

a mixture
a substance
an atom
a compound

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A substance that contains only one type of atom is a(n)

compound
element
heterogeneous mixture
homogeneous mixture

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Atoms of an element always have a certain number of

neutrons
protons
electrons
ions

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Two or more elements chemically combined:

an atom
a compound
a mixture
a pure substance

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What does the 1.00794 stand for?

Hydrogen
atomic number
atomic mass
atomic explosion

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the number of protons that the element in this image contain?

14
7
15
18

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

M&M's is an examples of a

homogeneous mixture
heterogeneous mixture

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