If I start with 89 grams of sulfuric acid and produce 7.1 g of water, what is my percent yield?

What is important to study for nios grade 12 chemistry? i have only one month left.

1. combine iron and copper (ii) sulfate solution. (hint: iron will form the iron (iii) ion) fe + cuso4 → 2. combine lead (ii) nitrate and potassium iodide solutions. pb(no3)2+ kl → 3. combine magnesium metal and hydrochloric acid solution. mg + hcl → 4. electrolysis (splitting) of water. h2o → 5. burning magnesium. mg + o2 →

  the mississippians were considered to be  horticulturalists, which means they were