How many atoms are in 100g H2O ?

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

What is dhmo? hint: you find it everywhere something is wet..

Which is not true regarding reaction rates? (2 points) catalysts are not used up in the reaction. catalysts speed up reactions by lowering the activation energy. reaction rates decrease as the concentration of reactants decrease. during reactions, concentrations of all reactants decrease at the same rate.