Consider this reaction: 3Ca + 2H3PO4 3Ca + 2H3PO4 --> Ca3(PO4)2 + 3H2 How many moles of calcium are required to produce 8.9 moles of calcium phosphate?​

Drive down any three characteristic of modern periodic table

If 16.00g of hydrogen gas reacts with 126.73g of oxygen, how many grams of water are yielded? (both reactants are completely consumed in the reaction.)

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.