Which describes the light-dependent stage of photosynthesis?
(select all that apply.)

a. photosynthetic pigments absorb energy from light.

b. carbon dioxide is incorporated into a preexisting sugar molecule.

c. water is split, which produces oxygen.

d. hydrogen ions (h+) are moved against their concentration gradient.

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.