3Ca + 2H3PO, Caz(PO4)2 + 3H2 When 35.5 g of calcium is reacted with 52.3 g phosphoric acid, what volume, in liters, of hydrogen gas will be produced at STP? How much excess reactant will remain?

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i