A group of students added an excess of finely divided zinc metal to aqueous sulphuric acid. When no more gas was evolved, they filtered the mixture and used the filtrate to obtain dry crystals of hydrated zinc sulphate. (a) Write a balanced chemical equation for the reaction between zinc and
aqueous sulphuric acid. Include state symbols.

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.