4. Based on their placement on the periodic table, which of the following is more reactive?
A. Sodium (Na)
B. Magnesium (Mg)
C. Barium (Ba)
D. Neon (Ne)

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

In the lab, ammonia was mixed with water to form ammonium hydroxide. what is/are the reactant(s)? o water and ammonia o ammonia o ammonium hydroxide need

Consider the story you just read. all but one of the choices below indicate that something is living.