Counting Atoms PRACTICE

Counting Atoms PRACTICE

8th Grade

14 Qs

quiz-placeholder

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Counting Atoms PRACTICE

Counting Atoms PRACTICE

Assessment

Quiz

Science

8th Grade

Hard

NGSS
MS-PS1-1

Standards-aligned

Created by

GENEVA ABREGO

Used 4+ times

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14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

How many atoms of oxygen are in this compound?

2Ca(OH)2

1

2

3

4

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Number of H in 3(NH₄)₂CrO₄

4
2
8
24

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which chemical reaction involves the fewest oxygen atoms?

2AgNO3 + K2SO4 --> Ag2SO4 + 2KNO3

4Fe + 6H2O + 3O2 --> 4Fe(OH)3

6CO2 + 6H2O --> C6H12O6 + 6O2

C2H4 + 3O2 --> 2CO2 + 2H2O

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Which of these formulas contain equal numbers of nitrogen atoms?

Formulas I and III

Formulas I and IV

Formulas I, II and V

Formulas II and III

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How many Hydrogen are in 4H2O?

6
8
2
4

Tags

NGSS.MS-PS1-1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many Magnesium are in 10MgCl2?

10
5
20

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Number of H in 3(NH₄)₂CrO₄

4
2
8
24

Tags

NGSS.MS-PS1-1

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