i need help and it’s for science cause i have a bad grade in it and have 3 days to get all my grades up so help pls?

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 →

Adilute aqueous potassium nitrate solution is

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.