Electrons move or cannot move from one object to another when rubbed together

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 →

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

4. absorption has the highest risk of overdose due to increased potency. a. rectal b. oral c. transdermal d. intranasal