which of the following is a chemical property of a substance conducts electricity reacts with hydrochloride acid bends easily or is more dense than water

Which is true concerning the products and reactants of photosynthesis and cellular respiration? a. the products of photosynthesis are sugars and the reactants of cellular respiration are starches. b. the products of photosynthesis are reactants in cellular respiration. c. oxygen is needed for photosynthesis and is given off in cellular respiration.

How to calculate the mass of copper

Ahelium balloon contains 16.9 l of helium at stp. how many atoms of helium are in the balloon