Which equation represents neutralization?
A 6Li(s) + N2(g) — 2Li3N(s)
B. 2Mg(s) + O2(g) — 2MgO(s)
c. 2KOH(aq) + H2SO4(aq) – K2SO4(aq) + 2H20(2)
D Pb(NO3)2(aq) + K Cro4(aq) — 2KNO3(aq) PbCro_(s)

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness

Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.