1. Write formulas:
a)Iron (II) chloride d)Lithium acetate
b)Nitrogen dioxide e)Lead (II) sulfate
c)Aluminum nitrate f)Sodium chlorate
2. Write names:
a)NH4Br d)PCl3
b)NiSO4 e)Na2CO3
c)Mg(NO3)2 f)SnCl4
3. Convert:
a) 71 grams of chlorine gas to molecules.
b) 2 moles of NaHCO3 to grams.
c) 68 grams of CaSO4 to moles.
d)56 grams of nitrogen gas to moles.
4. Calculate the percentage of calcium in CaCO3.
5. Determine the empirical formula of a compound consisting of 40% S and 60% O.
6. Aluminum sulfate and calcium hydroxide react to form aluminum hydroxide and calcium sulfate. How many grams of calcium sulfate will be produced if 4 moles of aluminum hydroxide are produced?
Al2(SO4)3 + 3 Ca(OH)2 ---> 2 Al(OH)3 +3CaSO4
7. How many grams of magnesium will react with an excess of HNO3 to produce 1.0 gram of hydrogen in a single displacement reaction?
8. The following reaction takes place: 2Na + 2H2O ---> 2NaOH +H2
a)Calculate the number of moles of hydrogen that will be produced if 11.5 g of sodium are reacted.
b) Calculate the number of grams of hydrogen that will be produced in this same reaction.
9. In the reaction represented by CaCO3 + 2HCl ---> CaCl2 + H2O + CO2, 50 g of CaCO3 are reacted with 40 g of HCl.
a) Which reactant is in excess?
b) How many grams of water will be produced?
10. How many grams of iron will be needed to react completely with an excess of oxygen to form 40 g of iron (III) oxide? 4Fe + 3O2 ---> 2Fe2O3