Equation

Equation

8th Grade

15 Qs

quiz-placeholder

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Equation

Equation

Assessment

Quiz

Science

8th Grade

Hard

NGSS
HS-PS1-7, MS-PS1-5, HS-LS1-5

+4

Standards-aligned

Created by

Lisa Thompson

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

KNO3 --> KNO2 + O2
What coefficients are needed to balance the reaction?

2, 2, 1

2, 3, 2

1, 2, 2

1, 3, 1

Tags

NGSS.HS-PS1-7

2.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Balance this equation-
__P+ __O--> __P2O3

it is already balanced

2, 1, 3

1, 2, 3

1, 3, 2

Tags

NGSS.HS-PS1-7

3.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Balance this equation.
_CH4 + _O--> _CO+ _H2O

1,2,1,1

2,1,2,1

1,2,1,2

0,2,0,2

Tags

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Fill in the blanks with coefficient:

PCl5+_ H2O→_ HCl+H3PO4

4, 5

1, 6

3, 8

2,2

Tags

NGSS.HS-PS1-7

5.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Which equation is balanced?

PbO2 + 2H2--> H2SO4

SO2 + H20 --> H2SO4

2Na + 2H2O --> 2NaOH + H2

2Na + 2H2O --> 2NaOH + H

Tags

NGSS.HS-PS1-7

6.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Balance this equation:
P4+O2  -->  P2O3

3 P4+ O--> 2 P2O3

 P4+ O--> 2 P2O3

 P4+ 3 O2 --> 2 P2O3

 P4+ 2 O--> 3 P2O3

Tags

NGSS.HS-PS1-7

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Balance this equation.

__SnO2 +__H2-->__Sn +__H2O

1,1,2,1

1,2,1,1

1,2,1,2

1,2,2,1

Tags

NGSS.HS-PS1-7

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