Balancing equations

Question 1

Name the types of reactions

Answer 1

Photosynthesis
Respiration
Combustion (form oxidation that relases a lot of energy)
Oxidation
Decomposition
Acid, base neutralization (acid+base=salt water)

Question 2

Name the rules of balancing chemical equations.

Answer 2

• the # of each atom must be equal on both sides of the reaction
• you can only modify the coefficient number in front such that they are balanced on both sides
• must reduce

Question 3

How can you identify an acid? A base?

Answer 3

Acid: starts with H
Base: ends with OH

Question 4

When an acid reacts with a base, what is the product?

Answer 4

A salt (matal & nonmetal/- polyatomic) + water

Question 5

Identify all the components of the following & balance

HF + KOH —> KF + H20

NaOH + HCl —> NaCl + H2O

Answer 5

dunno

Question 6

Is the following equation balanced?

2Fe2O3 + 3C —> 3CO2 + 2Fe

Answer 6

idk

Question 7

Balance the following

CH4 +O2 —> CO2 + H2O

Answer 7

..

Question 8

Balance the following

C6H12O6 + O2 —> CO2 + H2O

Answer 8

..

Question 9

Balance the following

N2 + H2 —> NH3

Answer 9

..

Question 10

Balance the following

Mg + H3PO4 —> Mg3(PO4)2 + H2

Answer 10

3Mg + 2H3PO4 —> Mg3(PO4)2 + 3H2

Question 11

Balance the following

H2SO4 + Mg(OH)2 —> MgSO4 + H2O

Answer 11

..

Question 12

Balance the following

Fe + O2 —> Fe2O3

Answer 12

…

Question 13

Determine the mass of CaO produced if 200g of CaCO3 decomposes and produces 88g of CO2

CaCO3 —> CaO + CO2

Answer 13

112 g

Question 14

If 72g of water and 64g of oxygen are produced, what mass of H2O2 decomposes?

2H2O2 —> 2H2O + O2

Answer 14

136g