Uranium Group
Converting Word Equations to Formulaic Equations
Write each of the following equations using chemical symbols and all other appropriate
symbols. Remember to put state of matter in parenthesis and subscripted.
1. Iron is heated in the presence of solid sulfur to from solid iron III sulfide
2Fe(s) + 3S (s) → Fe2S3 (s)
2. Gaseous methane CH4 is reacted with oxygen gas to form carbon dioxide gas and water
vapor
CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (g)
3. Calcium acetate reacts with sodium carbonate to produce calcium carbonate and
sodium acetate.
Ca(C2H3O2)2 (aq) +Na2CO3 (aq)→ CaCO3 (s) + 2NaC2H3O2 (aq)
4. Iron combines with oxygen and water to form iron (III) hydroxide
4Fe (s) + 3O2 (g) + 6H2O (l) → 4Fe (OH)3 (s)
5. Copper-bottomed cooking pans turn black because copper combines with oxygen to
form copper (II) oxide.
2 Cu (s) + O2 (g) → 2CuO(s)
Predicting Single Replacement Reactions
Predict the products and balance the following single replacement reactions. If no reaction
occurs write N.R. For transition metals use the following charges:
1. Fe (s) +
CuCl2(aq) 


2. Hg(l)
+
Sn(SO4)2 (aq) 


3. Iron + Nickel II Iodide
2Fe (s) + 3Ni I2 (s) → 2FeI3 (s) + 3Ni (s)
4. Sodium Permanganate + Calcium
2Na (MnO4)(s) + Ca (s) → Ca(MnO4)2 (s) + 2Na (s)