Reaction Types
(Name the type of reaction)
(Name the type of reaction)
2H2O2 -> 2H2O + O2
Decomposition
Given the equation
3A+2B→2C
What is the mole ratio between A and C
3:2
What is the molar mass of Sodium chloride?
58.44 g/mol
What is the formula for Iron(III)Oxide?
Fe2O3
4Fe+3O2→2Fe2O3
Synthesis/Combustion*
2CO+O2→2CO2
How many moles of O2 are needed to react with 6 moles of CO?
3 mol
How many moles are there in 17g or H2O?
molar mass of H2O is 18.015 g/mol
0.94 mol
What is the percent composition of carbon in carbon tetrafluoride (CF4) ? The molar mass of carbon tetrafluoride is 88.003 g/mol.
13.6%
2Al+3NiSO4→Al2(SO4)3+3Ni
Single displacement
In the reaction represented by the equation 2Al2O3→4Al+3O2, what is the mole ratio of aluminum to oxygen?
4:3
How many molecules are there in 5.0 grams of methanol, CH3OH? The molar mass of methanol is 32.042 g/mol
9.4*1022
A compound has a molar mass of 92.011 g/mol and an empirical formula of NO2
What is the molecular formula?
N2O4
What type of reaction involves the moving of electrons and the raising and lowering of oxidation states.
Redox/Oxidation-reduction reactions
2Fe + 3Cl2→2FeCl3
What mass of iron(III)chloride is formed by reacting 3 moles of Cl2 with excess Fe?
The molar mass of iron (III) chloride, is 162.2 g/mol.
324.4 g
How many grams are there in 3.25 moles of Oxygen gas?
103.994
Empirical formula for a compound that is 46.7% Si and 53.3% O?
SiO2
How could you describe the oxidation of a Zinc atom into a Zinc ion in terms of electrons? (Zn ion=Zn2+)
2 electrons are lost or taken from Zinc, tanking its charge from 0 to 2+
Balance the chemical equation
CH3OH+O2→CO2+H2O
2CH3OH+3O2→2CO2+4H2O
What isotope serves as the basis for defining the mole in chemistry?
Carbon-12