The chemical reaction
2 h2o + energy → 2 h2 + o2
is
1. a synthesis reaction.
2. an endothermic reaction.
3. an exothermic reaction.
4. an ionic reaction.

What is the value of keq for the reaction expressed in scientific notation?

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules

Which of the following is true about the speed of light? it depends on the wavelength.