A sample of benzene shows that it consists of 13.74g of carbon and 1.15g of hydrogen. What is the percent composition of the compound

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 →

How do you lengthen a pattern piece? (family and consumer science, sewing)

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~