Achimical reaction is supposed to produce 1.44 g of product x. when the reaction is carried out, only 1.31 g of product x are formed. what is the percenr error in the yield of the reaction?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.

What would happen to a volleyball left outside in the winter? o o o o a. it would expand. b. it would lose air. c. it would shrink. d. it would explode.