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Balance Equations level1

Authored by Sahar Sayedahmed

Chemistry, Science

9th - 12th Grade

NGSS covered

Used 148+ times

Balance Equations level1
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14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is a coefficient?

The small number on the right of the chemical symbol.
The large number to the left of a formula.

Tags

NGSS.MS-PS1-5

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Balance this equation
_Zn+_HCl-->_ZnCl2 +_H2

1,1,2,1
1,1,1,2
1,2,1,1
2,1,1,1

Tags

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Balance this equation.
_Mg + _Cl2 --> _MgCl2

1, 2,1
already balanced
2,1,1
1,1,2

Tags

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many atoms of aluminum are on each side of the following equation: 4Al + 3O2 --> 2Al2 O3

2

6

1

4

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-1

NGSS.MS-PS1-2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The blue numbers in the image below represent ________

Charges
coefficients
subscripts
none of the answers are correct

Tags

NGSS.MS-PS1-1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Number of H in 3(NH₄)₂CrO₄

4
6
8
24

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Balance this equation:
P4+O2  -->  P2O3

3 P4+ O2 --> 2 P2O3
 P4+ O2 --> 2 P2O3
 P4+ 3 O2 --> 2 P2O3
 P4+ 2 O2 --> 3 P2O3

Tags

NGSS.MS-PS1-5

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