Ascientist is studying a chemical reaction. she predicts that after the reaction the product will have less chemical potential energy than the reactants had originally. the scientist observes the reaction, and notes that no light or sound is produced. however, other observations support the scientist's prediction that the total chemical potential energy has decreased. describe one observation that would support her prediction:

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 is the mass of naoh that would have to be added to 500 ml of a solution of 0.20 m acetic acid in order to achieve a ph of 5.0?

The graph shows one consequence of urban sprawl. how did urban sprawl contribute to the change in biodiversity