Which is an example of a precipitation reaction?
a.
a solution of hcl mixes with a solution of naoh to produce a solution of nacl.
b.
a solution of agno3 mixes with a solution of nacl to produce solid agcl and a solution of nano3.
c.
solid c6h12o6 combines with o2 gas to produce co2 gas and h2o gas.
d.
solid fe combines with o2 gas to produce solid fe2o3.

Given the data below for the reaction, 2 a + 2 b + 4 c => d + e + 3 f, the reaction is fill in the [ ] order in a, fill in the [ ] order in b, fill in the [ ] order in c and fill in the [ ] order overall. (use the words "first, second, third, fourth" to fill each blank)experimentinitial conc of a, mol/l initial conc of b, mol/l initial conc of c, mol/l initial rate, mol/l. s1 0.1 0.1 0.2 2 x 10-32 0.2 0.3 0.2 6 x 10-33 0.3 0.1 0.2 2 x 10-34 0.4 0.3 0.4 1.2 x 10-2