Name:  _____________________                              date:  __________________              period: _______

Ch. 8 & 18  chemical reactions                       test                              60 points                     chemistry

FYI; based on last year’s test.


1. write the balanced net ionic equation for the following reactants; if there's no reaction, then write "no reaction".  [20 points]

a. aqueous solution of copper (II) nitrate and solid iron

b. mix aqueous solutions of sodium hydroxide and lead (II) acetate

c. combustion of ethane, C2H6 gas

d. mix aqueous solutions of lithium chloride and potassium carbonate

e. mix aqueous solutions of sodium bicarbonate and hydrogen chloride


2. What is the oxidation number of __ [10 points]

a. Cr in Cr2O7 -2 is ______
b. carbon in carbon monoxide is _______
c. oxygen in hydrogen peroxide is _____
d. Fe in Fe 2O3 is ______
e. carbon in glucose, C6H12O6 is _______

3. Identify the type(s) of reaction; i.e. single replacement, double replacement, acid-base, precipitation, redox, combustion, synthesis, degradation / decomposition. [10 points]


a. CH4 + O2 → CO2 + H2O is _______________________________________________
b. Sn + Cu(NO3)2 → Cu + Sn(NO3)2 is ________________________________________
c. H2O2 → O2 + H2O is _____________________________________________________
d. HCl + KOH → KCl + H2O is _______________________________________________
e. Na2CO3 + HF → H2O + CO2 + NaF is ________________________________________

4. Identify the atom that was oxidized (by drawing an arrow above the chemical equation) and its oxidation number in both the product and reactant side of the chemical equation. Identify the atom that was reduced (by drawing an arrow below the chemical equation) and its oxidation number in both the product and reactant side of the chemical equation. if none of the atoms were oxidized or reduced in the reaction, then write "not a redox reaction". [20 points]


a. CH4 + O2 → CO2 + H2O

b. Sn + Cu(NO3)2 → Cu + Sn(NO3)2

c. H2O2 → O2 + H2O

d. HCl + KOH → KCl + H2O

e. Na2CO3 + HF → H2O + CO2 + NaF