(ii) Electrons are supplied to the external circuit. How and where is this done?
[2]

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 many neutrons does a atom of cobalt have?

Draw the structure for 5-isopropyl-2-methyl-3-nonene