Chapter 3 Quiz A
Name ________________________
4pts 2.Complete the following with the correct symbol or name (correct spelling required).
a) phosphoric acid ______________________________
b) lead(IV)perbromate ______________________________
c) LiH(SO3) ______________________________
d) H2S(aq) ______________________________
1pts 2. The recommended daily allowance of chromium is 1.0 x 10-6g. Convert this to number of
atoms.
2pts 3. An important reaction in the production of ammonia-based fertilizer is:
N2 + H2 ® NH3(not balanced)
Calculate how many grams of ammonia can be produced from 25.0 grams of nitrogen
and excess hydrogen.
1pt 4. In a chemical reaction the theoretical yield is 145 g. If the percent yield was 92.0%, what
was the actual yield?
2pts 5. Complete and balance the following reactions.
a) Combustion: C4H10(g) + O2(g)
b) Decomposition: CaCl2(g)