In a chemical reaction, the difference between the potential energy of the products and the potential energy of the reactants is defined as the

(1) activation energy

(2) ionization energy

(3) heat of reaction

(4) heat of vaporization

What is true about polar solvents? Select all that apply. A) the particles of polar solvents dissolve no polar solute B) the particles of polar solvents have areas of partial negative charge C) the particles of polar solvents carry no partial

Review It! All of the following are correct, except: a; A galaxy contains a vast number of stars, their planetary systems, and a variety of other celestial objects. b; Stars orbit the many planets of a galaxy.

Complete the sentences about the Cori cycle. Muscles break down into, which undergoes glycolysis. The end product of glycolysis in active muscles is, which is transported in the blood. The liver uses energy from to drive.

If you are told that one of them is Cr2O3 and the other is OsO4, which one do you expect to be the yellow solid? Cr2O3 OsO4

Never trust Wikipedia .

The rocks and minerals of the Earth consist of compounds.

Do the number of protons in an atom of an element always equals its atomic weight.

Calculate the [oh-] in a solution with a ph of 12.52.

Which of the following months would be the darkest at the South Pole? January December August February

The half-life of a certain radioisotope is 8 days. How much (mass) of a 80 mg sample will remain after 24 days?