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10 Cards in this Set
- Front
- Back
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Physical change |
A change that alters the form or appearance of a material but does not make the material into another substance. |
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Chemical change |
A change in which one or more substances combine or brake apart to form new substances. |
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Reactant |
A substance that enters into a chemical reaction. |
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Product |
A substance formed as a result of a chemical reaction. |
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EXOTHERMIC REACTION
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A reaction that releases energy, usually in a form of heat |
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ENDOTHERMIC REACTION
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A reaction that absorbs energy. |
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CHEMICAL EQUATION
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A short, easy way to show a chemical reaction, using symbals. |
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MATTER
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Anything that has mass and takes up space. |
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LAW OF CONSERVATION OF MASS
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The principal that the total amount of matter is neither created nor destroyed during any chemical or physical change. |
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COEFFICIENT
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A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction. |
