If you need to use the reaction to generate 977 kJ of heat, what mass of chlorine gas do you need to react with excess phosphorus solid? 2P(s) + 5Cl2(g) ⟶ 2PCl5(g) ΔHrxn= ー886kJ

An atomic nucleus is composed ofa)protons.b)protons and neutrons.c)protons and electrons.d)protons, neutrons, and electrons.

Salt in oceans comes from and of rocks

What happens to the concentration of hydronium ions as the ph of a solution increases? a. hydronium ion concentration stays the same b. hydronium ion concentration decreases c. hydronium ion concentration increases