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Biology Chapter 2
Term | Definition |
---|---|
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 |