CO Phosphate ions are an important component for (Select all)
A DNA
B teeth
C nucleic acids
D RNA
E vertebrate bones

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.