Chemistry Vocab Flashcards
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Alloy
A mixture of two or more metals
Anion
A negative charge ion
boiling
A phase change from liquid to gas (vapor)
Cation
A positively charged ion
Chemical Change
A change that results in a new substance with a new physical and chemical properties
Combustion
An exothermic chemical reaction:burning
Compound
A substance composed of two or more different elements chemically combined in a definite ratio.A compound cna be decomposed by a chemical change
Condensation
The change in state of matter from vapor liquid
Covalent Bond
A chemical bond foremed when toms share electrons
Decomposition
A chemical reaction in which the reactions are broken apart;the chemical breakdown of a substance into a simpler substance
Freezing
The change in a phase of a substance from a liquid to solid
Gas
A phase of matter that has no definite shape or volume
Melting Point
The temperature at which a phase change occurs from solid to liquid;the same as freezing point
