For each of the following, use the periodic table to determine the number of valence electrons in an atom of the element. Ne S Mg Sn C Al Te Cs Bi Br Ga P

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

The sum of the oxidation numbers in a neutral compound is always

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.