Write 4 chemical equations with the product and reactant. (if you know only 1 or 2 just write it)

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

Plz ill give u brainliest which of the following steps is not likely to take place during cellular respiration? a.oxygen combines with carbon of simple sugar. b. energy molecule transfers energy to cells. d. energy is used up.

On the periodic table, elements are arranged by which of the following. a. mass numbers. b. increasing atomic number. c. alphabetical order. or d. density