Free Printable Balancing and Types of Chemical Equations

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Balancing and Types of Chemical Equations

Total questions: 19

Worksheet time: 1hrs 12mins

Name

Class

Date

In the equation, 2Mg + O₂ ---> 2MgO, which are the reactants?

Mg and O₂

MgO

Mg and MgO

O and MgO

Balance this equation, Al₂O₃ ---> Al + O₂

Cannot be balanced

2Al₂O₃ ---> 2Al + 3O₂

2Al₂O₃ ---> 4Al + 3O₂

3Al₂O₃ ---> 2Al + O₂

Balance this equation: H₂ + N₂ → NH₃

H₂ + 4N₂ → NH₃

H₂ + 3N₂ → 2NH₃

3H₂ + N₂ → 2NH₃

2H₂ + 2N₂ → 2NH₃

Balance this reaction: ____ HCN + ____ CuSO₄ ---->____ H₂SO₄ + ____ Cu(CN)₂

2,1,1,2

2,1,1,1

1,2,2,1

1,2,1,1

Balance this reaction: ____ RbNO₃ + ____ BeF₂ ----> ____ Be(NO₃)₂ + ____ RbF

1,1,1,1

1,2,1,1

2,1,1,2

2,1,2,1

___C₃H₈ +___O₂ --> ___CO₂ + ___H₂O

1,5,3,4

2,10,6,8

already balanced

1,5,5,4

__Al + __Fe₃N₂ -->__AlN + __Fe

already balanced

4,2,4,6

2,1,2,3

1,2,1,3

__H₂O₂ --> __H₂O + __O₂

already balanced

2,1,1

2,2,1

2,1,2

Which of the following is a acid-base reaction (hint: it is double replacement?

2Na + Cl₂ → 2NaCl

CH₄ + 2O₂ → CO₂ + 2H₂O

HCl + KOH → KCl + H₂O

CaCO₃ → CO₂ + CaO

10.

Classify this reaction

2Ca(s) + O₂(g) --> 2CaO(s) (hint: the charge of 2 elements change)

Precipiation

Acid-Base

Redox

Single Replacement

11.

Classify this reaction: (hint: the charge of 2 elements change)

4Fe + 3O₂ --> 2Fe₂O₃

Redox

Precipitation

Acid-Base

Single Replacement

12.

Classify this reaction (hint the charge of 2 elements change): Zn + H₂O --> ZnO₂ + H₂

Redox

Acid-Base

Precipiation

Double Replacement

13.

Classify this reaction: (hint the charge of 2 elements change)

4Fe + 3O₂ --> 2Fe₂O₃

Redox

Acid-Base

Precipitation

Double Replacement

14.

Classify this reaction

ZnCl₂ (aq) + LiOH (aq) → Zn(OH)₂ (s)+ LiCl (aq) (hint: look at the phases). This should be double replacement!

precipitation

acid-base

redox

synthesis

15.

BaSO₄

soluble

insoluble

16.

AgCl

soluble

insoluble

17.

NH₄NO₃

soluble

insoluble

18.

Zinc Carbonate

Soluble

Insoluble

19.

Which substance is insoluble in water?

MgS

BF₃

Sr(OH)₂

MgO

100 %

Balancing and Types of Chemical Equations

Total questions: 19

Worksheet time: 1hrs 12mins

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