Types of Reactions
Balancing Reactions
Stoichiometry
Molar Mass
Vocabulary
100
What type of reaction is this, Ca + N2 --> Ca3N2?
Synthesis Reaction
100
Balance the following: ___ KClO3 --> ___ KCl + ___ O2
2KClO3 --> 2KCl + 3O2
100
Using 2KClO3 --> 2KCl + 3O2, what is the stoichiometric ratio (#:#) between KClO3 and KCl?
It is 1:1.
100
What is the unit for molar mass?
gram per mole (g/mol)
100
This is what you start with in a chemical reaction. It is usually on the left side of a chemical equation.
What is a reagent?
200
What type of reaction is this, H2 + N2 --> NH3
synthesis reaction
200
Balance the following: ___ FeO + ___ H2O --> ___ Fe(OH)2
_1_ FeO + _1_ H2O --> _1__ Fe(OH)2
200
Using 2KClO3 --> 2KCl + 3O2, what is the stoichiometric ratio between KClO3 and O2?
It is 2:3.
200
What is the molar mass of molecular oxygen?
31.998 g/mol
200
When balancing a chemical equation, this is the part of the equation that you can change.
What is the coefficients?
300
Give a generic example of a decomposition reaction.
AB --> A + B
300
Balance this equation: ___ NHO2 --> ____ N2O3 + ____ H2O
_2_ NHO2 --> _1_ N2O3 + _1_ H2O
300
Using 2KClO3 --> 2KCl + 3O2, if you have 20 moles of KClO3 and how many moles of O2 could you make?
You would make 30 moles of O2.
300
What is the molar mass of water?
18.0148 g/mol
300
This is the average mass of an element. It can be found on the periodic table.
What is the atomic mass?
400
Give a generic example of a synthesis reaction.
A + B --> AB
400
Balance this reaction: ___ C7H6O3 + ___ O2 --> ___ H2O + ____ CO2
_1_ C7H6O3 + _7_ O2 --> _3_ H2O + _7_ CO2
400
Using 2KClO3 --> 2KCl + 3O2, if you have 90 moles of KClO3 and how many moles of O2 could you make?
There would be 135 moles of O2.
400
What is the molar mass of sodium carbonate?
105.998 g/mol
400
A unit of measurement for chemists for determining how many atoms are present in a substance. There are 6.022 x 1023 units inside it.
What is a mole?
500
Give a generic example of a combustion reaction.
Fuel + O2 --> CO2 + H2O
500
Balance this reaction: ___ C12H22O11 + ___ O2 --> ___ H2O + ___ CO2
_1_ C12H22O11 + _12_ O2 --> _11_ H2O + _12_ CO2
500
Using 2KClO3 --> 2KCl + 3O2, if you have 90 moles of O2 and how many moles of KClO3 could you make?
60 moles of KClO3.
500
What is the molar mass of aluminum bromide?
266.694 g/mol
500
This is the law that says that matter cannot be created or destroyed only transferred or rearranged.
What is the law of conservation of mass?
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