Which accurately represents these building blocks of matter from the smallest to the largest? atom -- molecule or compound
O molecule -- atom - element
compound - molecule -- element
molecule atom or element

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 clouds are grey and ground is wet. a quantitative b qualitative

How are isotopes of the same chemical element alike? how are they different?