Scrub the Air HW
1. Convert the following verbal descriptions into chemical equations.
a. Vinegar, which contains acetic acid (CH3CO2H), can be used to remove
deposits of calcium carbonate (CaCO3) from pipes. This reaction forms
water, carbon dioxide, and calcium acetate (Ca(CH3CO2)2), which is
soluble in water.
b. In steel production, companies heat solid iron oxide (Fe2O3) and gaseous
carbon monoxide (CO) to form liquid elemental iron and carbon dioxide
gas.
2. Convert the following equation into a verbal description:
Zn(s) + HCl (aq)  ZnCl2(aq) + H2(g)
3. Figure out the charge on each of the following polyatomic ions. Explain how you
figured each out.
a. NO3
b. HSO4
c. NH4
d. SO4
4. Classify each reaction as Combination or Decomposition. Then, predict the
product(s) for each:
a. CO + O2 
b. HgO 
c. CaO + H2O  (Hint: Ca2+ bonds to OH-)
d. KClO3 