Chemistry ! i just need to make sure the answers you! 1. in a reaction between vinegar and antacid tablets, the antacid is the limiting reagent. at constant pressure and temperature, three tablets produce 600 cm3 of gas. what volume will two tablets produce? a. 400 cm3 b. 600 cm3 c. 800 cm3 d. 1,200 cm3 my answer is a. 400 cm3 2. you breathe in 3.0 l of pure oxygen at 298 k and 1,000 kpa. how many moles of oxygen did you take in? a. 0.05 moles b. 1.21 moles c. 2.42 moles d. 20.0 moles my answer is b 1.21 moles,