Log in
Sign up for FREE
arrow_back
Library

Balancing of Chemical Equations

star
star
star
star
star
Last updated almost 2 years ago
13 questions
Required
1
Required
1
Required
1
Required
1
Required
1
Required
1
Required
1
Required
1
Required
1
Required
1
Required
5
Required
3
Required
4
Question 1
1.

How many oxygens are there in H2O

Question 2
2.

How many oxygens are there in 2H2O

Question 3
3.

How many hydrogens are there in 2H2O

Question 4
4.

How many oxygens are there in 4(NO3)?

Question 5
5.

How many Aluminums are there in 3Al2O3?

Question 6
6.

How many hydrogens are there in Mg(OH)2 ?

Question 7
7.

OH is Hydroxide. How many hydroxides are there in Al(OH)3?

Question 8
8.

How many oxygens are there in: CO2 + H2O?

Question 9
9.

What number (coefficient) will balance this reaction? ___H2 + O2 → 2H2O

Question 10
10.

What coefficient would balance this reaction? 2Al + __ Br2 → 2AlBr3

Question 11
11.
Draggable itemarrow_right_altCorresponding Item
2C3H7OH + 9O2 → 6CO2 + 8H2O
arrow_right_alt
combustion
NaS + ZnNO3 → NaNO3 + ZnS
arrow_right_alt
synthesis
Mg + 2AgNO3 → Mg(NO3)2 + 2Ag
arrow_right_alt
double displacement
2KClO3 → 2KCl + 3O2
arrow_right_alt
decomposition
2H2 + O2 → 2H2O
arrow_right_alt
single displacement
Question 12
12.
Balance this equation: __________Fe + __________O2 → __________Fe2O3
Question 13
13.
Balance this equation: __________Mg + __________H2O→ __________Mg(OH)2 + __________H2