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Biology Chapter 2

TermDefinition
Acid A chemical that turns litmus red or sour tasting liquid
Anion a negatively charged ion
Adhesion the action or process of adhering to a surface or object
Aqueous a solution in which water is solvent
Base reacts to acids to form salts and turns red litmus blue
Cation a positively charged ion
Chemical Bond the action of holding atoms or ions together
Chemical Formula states the # of atoms in a molecule of a substance
Cohesion action of forming a united whole
Compound a substance formed two or more substances
Covalent Bond share electrons between atoms
Element a substances that can't be broken down into simple substances
Energy Ability to do work
Endothermic reaction requiring the absorption of heat
Exothermic reaction by the release of heat
Hydrogen Bond weak bond between two molecules
Ion an atom with a net charge
Ionic Compound one atom gives up one or more electron to another atom
Mixture a mix of two substances
Molecule a group of bonded atoms
Oxidation Reaction loses 1+ electrons becomes a cation(positive)
pH Scale a scale to measure the acidity or basic of a substances
Polar Molecule a partial positive charge and one part complementary negative charge
Reduction Reaction gains 1+ electron becomes anion(negative)
Redox Reaction where reduction and oxidation work together
Solubility/Soluble property of a solid, liquid, or gaseous chemical substance
Non-Polar Molecule two atoms share a pair of electrons with each other
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