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Chapter 2 Vocab

Across
Chemical reaction that absorbs more energy than it releases.
A measurement of the amount of hydrogen ions in a solution.
The attraction of a molecule to a different substance.
Molecules composed of carbon, hydrogen and oxygen in a 1:2:1 ratio.
A mixture of substances that is the same throughout.
The amount of energy needed to be absorbed for a reaction to start.
A substance that decreases the activation energy, needed to start a chemical reaction.
The substance in a solution that is present in the greater amount.
A compound that remove hydrogen ions in water.
Substances that change during a chemical reaction
A chemical reaction that releases more energy than it absorbs.
Molecules that contain carbon, hydrogen, oxygen, nitrogen and sometimes sulfur
Nonpolar molecules that contain fats, oils, and cholesterol
Down
A state when both reactants and products are made at the same rate.
The amount of energy that will break a bond between atoms.
Substances made by the chemical reaction
Catalyst for chemical reactions in living things.
Polymer made of nucleotides that contain sugar, a phosphate group and nitrogen molecular base.
A polymer made of amino acids
The substance in a solution that is present in a lesser amount.
The attraction of a molecule to itself.
A specific reactant that an enzyme works on.
Chain of carbon atoms bonded to hydrogen atoms
A single molecule or one molecule that is part of a polymer
A compound that releases hydrogen ions in water.