(chemistry , quick! worth 55 points) a 3.24-gram sample of nahco3 was completely decomposed in an experiment.
2nahco3 > naco3 + h2co3
in this experiment, carbon dioxide and water vapors combine to form h2co3. after decomposition, the na2co3 had a mass of 2.19 grams.

1. determine the mass of the h2co3 produced.
2. calculate the percentage yield of h2co3 for the reaction. make sure to show work, and describe the calculation process.

will mark as !

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

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.

Animals that reproduce sexually either do it through external or internal fertilization. read the following statement and decide if it is true or false. birds reproduce through external reproduction which is because the female will then be able to protect the egg.