Please help me with this, thank you so much

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 →

2. how is heavy water different from normal water

Asolution contains 180 g of glucose (c6h12o6) and 162 g of water. what is the mole fraction of glucose?