Mr. McPhillip has a ribbon of magnesium (Mg), a silvery
metal. As a demonstration for his class, he sets the metal
on fire. It burns brightly, leaving behind a whitish powder.

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

What reaction is taking place? 02 + c3h8 = h20 + co2

What is the independent variable in this investigation? mass volume sample number substance density