noun

a strong alkali that is a liquid consisting of ammonia and water

noun

a chemical in cells that stores energy and then lets the energy go from it for chemical reactions

noun

a white solid chemical compound that is found as chalk, limestone, or marble, and in animal shells and bone

noun

a white chemical compound used in the treatment of soil that contains too much acid and in making glass, cement, and plaster

noun

a number of carbon atoms joined in a row

noun

a very poisonous chemical

noun

an isotope (=form) of hydrogen that has double the mass of the ordinary isotope

noun

a chemical compound that contains oxygen and hydrogen in the form OH

noun

one of two or more compounds that have the same chemical formula, but have the atoms in their molecules arranged in a different way and have different properties from each other

noun

one of a group of chemical compounds that do not dissolve in water. Lipids include oils and fats.

noun

a compound that consists of two or more amino acids joined in a chain

noun

a very poisonous substance that is used in the treatment of cancer and also as a weapon by some terrorists

noun

a chemical compound that is very alkaline and is used in making paper, soap, chemicals, and medicines

noun

a chemical compound used in making fertilizers and for keeping meat fresh