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Counting Atoms

Authored by Candis Silva

Chemistry, Science

6th - 8th Grade

Counting Atoms
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5 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which of the models best represents CaCO3?

Media Image
Media Image
Media Image
Media Image

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is the correct formula for:
 three hydrogen (H)
one sulfur (S)
four oxygen (O)

H3SO4
HSO4
H4S3O
H2O

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is a compound?

Co
O2
C
CO2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many Sodium (Na) are in 6NaCl?

1
12
6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is the stronger acid?

pH 1
pH 4
pH 8
pH 13

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