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Substances: Elements & Compounds, Counting Atoms

Authored by Suzanne Blackburn

Science

6th - 8th Grade

NGSS covered

Used 10+ times

Substances: Elements & Compounds, Counting Atoms
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19 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In the diagram, each circle represents

an atom

a molecule

a chemical bond

an electron

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In the diagram, each line (stick) represents

an atom

a molecule

a chemical bond

an electron

Tags

NGSS.MS-PS1-1

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Which three are true for a substance?

Can be expressed by a chemical formula

Can be a molecule or extended structure

Can be an element or a compound

Always has more than one type of atom

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which one of the options below is an element?

No

NO

CO

HCl

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Cl2 is an example of (select 3 that apply)

a substance

an element

a compound

a molecule

Tags

NGSS.MS-PS1-1

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

CH4 is an example of (select 3 that apply)

a substance

an element

a compound

a molecule

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the expression 4NH3, the "4" is called a

chemical formula

subscript

coefficient

substance

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