Explain what is wrong with this balanced chemical equation and write the correct equation. (ref: p. 299-308).

Which type of fossil does this image depict?

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.