What type of reaction is 2H2 + O2 -> 2H2O?
a) Complete Combustion
b) Single Displacement
c) Synthesis
d) Decomposition
e) Neutralization

The reactants of a word or skeleton equation are separated by:
a) commas (,)
b) addition signs (+)
c) subtraction signs (-)
d) dashes (-)

iron + oxygen -> iron (III) oxide. What is the balanced equation?
a) 8Fe(s) + 6O2(g) -> 4Fe2O3(s)
b) 6Fe(s) + 8O2(g) -> 4Fe2O3(s)
c) Fe(s) + O2(g) -> Fe2O3(s) (balanced)
d) 3Fe(s) + 4O2(g) -> 2Fe2O3(s)
e) 4Fe(s) + 3O2(g) -> 2Fe2O3(s)

What are the products of the following reaction?
sodium chlorate ->
a) sodium + chlorine
b) sodium oxide + chlorine
c) sodium chloride + oxygen
d) sodium + chlorine + oxygen
e) none of the above

What reaction allows plants to make their own food?
a) Cellular Respiration
b) Single Displacement
c) Decomposition
d) Double Displacement
e) Photosynthesis

What type of reaction is N2H4 -> N2 + 2H2?
a) Incomplete Combustion
b) Neutralization
c) Decomposition
d) Single Displacement
e) Synthesis

We can find molar ratios using skeleton equations
a) true
b) false

silver nitrate + calcium chloride -> silver chloride + calcium nitrate. What is the balanced equation?
a) AgNO3(aq) + 2CaCl2(aq) -> AgCl(s) + 2Ca(NO3)2(aq)
b) 2AgNO3(aq) + CaCl2(aq) -> 2AgCl(s) + Ca(NO3)2(aq)
c) none of the above

What are the products of the following reaction?
sodium iodide + bromine ->
a) sodium bromine + iodide
b) bromide iodide + sodium
c) sodium bromide + iodine
d) sodium bromide + iodide
e) none of the above

What is a common use of combustion reactions?
a) Metals rusting
b) Cellular respiration
c) Burning gases for heat energy
d) How batteries work
e) Corroding various metals for industrial use

What type of reaction is Li2O + H2O -> 2LiOH?
a) Neutralization
b) Synthesis
c) Incomplete Combustion
d) Double Displacement
e) Does Not Exist

This symbol "⇌" represents:
a) no reaction
b) reaction under certain conditions
c) reversible reaction
d) dangerous reaction

hydrochloric acid + carbonic acid -> carbon dioxide + sodium chloride + water. What is the balanced equation?
a) 2HCl(g) + Na2CO3(aq) -> CO2(aq) + H2O(l) + 2NaCl(aq)
b) 2HCl(g) + Na2CO3(aq) -> CO2(aq) + 2H2O(l) + 2NaCl(aq)
c) none of the above

What are the products of the following reaction?
calcium acetate + sodium carbonate ->
a) calcium carbonate + sodium acetate
b) sodium calcide + calcium acetic
c) carbonate calcium + acetate sodium
d) calcium sodium + carbonate acetate

What type of reaction are thermite reactions?
a) Synthesis
b) Decomposition
c) Single displacement
d) Double displacement
e) Combustion

What type of reaction always has water and a salt as products?
a) Complete Combustion
b) Incomplete Combustion
c) Double Displacement
d) Synthesis
e) Neutralization

Write the word equation for the following situation:
Liquid mercury reacts with oxygen gas to form solid mercury (II) oxide.

propane + oxygen -> carbon dioxide + water. What is the balanced equation?
a) C3H8(g) + 2O2(g) -> H2(g) + 2CO2(g)
b) C3H8(g) + 5O2(g) -> 4H2(g) + 3CO2(g)
c) C3H8(g) + 5O2(g) -> 3H2(g) + 4CO2(g)
d) 2C3H8(g) + 10O2(g) -> 6H2(g) + 7CO2(g)

Which of the following single displacement reactions will occur?
a) Br2(g) + HF(aq) ->
b) Cu(s) + ZnCl2(aq) ->
c) Cl2(g) + HBr(aq) ->
d) Au(s) + Cu(NO3)2 (aq) -> 

Coal burning power plants release sulphur dioxide into the atmosphere. This causes two synthesis reactions with the oxygen and water present in the air. This is a problem because it can cause
a) acid rain
b) smog
c) thunderstorms
d) basic rain
e) none of

5. What type of reaction produces a blue flame?
a) Combustion
b) Incomplete Combustion
c) Complete Combustion
d) b) and c)
e) All of the above

Write the skeleton equation for the following situation:
Solid sodium metal reacts with liquid water to form an aqueous solution of sodium hydroxide and hydrogen gas.

butane + oxygen -> carbon dioxide + water. What is the balanced equation?
a) 2C4H10(g) + 13O2(g) -> 8CO2(g) + 10H2O(g)
b) 2C4H10(g) + 12O2(g) -> 8CO2(g) + 10H2O(g)
c) 2C4H10(g) + 11O2(g) -> 8CO2(g) + 10H2O(g)
d) C4H10(g) + 13O2(g) -> 7CO2(g) + 9H2O(g)

What are the products of the following reaction?
C5H12O + O2 -> 
a) 40CO2 + 48H2O
b) 11CO2 + 11H2O
c) 12CO2 + 10H2O
d) 20CO2 + 24H2O
e) none of the above

Antacids, such as Tums or Zantac, use which type of reaction to combat acid reflux?
a) single displacement
b) decomposition
c) incomplete combustion
d) double displacement
e) none of the above