Which is a conjugate pair in the following equilibrium? H2C204(aq) +HPO42 (aq) = HC204 (aq) + H2PO4 (aq)
OA. HPO42- and HC204
OB. HPO42- and H2P04
OC. H2C204 and HPO42-
O D.
H2C204 and H2P04

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?

What are the two largest greenhouse gases

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.