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10 Cards in this Set
- Front
- Back
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What is the scientific definition of physical change?
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A change that alters the form or appearance of a material but does not make the material into another substance. |
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What is the scientific definition of chemical change? |
A change in which one or more substances combine or break to form a new substance. |
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What is the scientific definition of reactant? |
A substance that enters into a chemical reaction. |
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What is the scientific definition of product? |
A substance formed as a result of a chemical reaction. |
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What is the scientific definition of exothermic reaction? |
A reaction that releases energy. The majority of the time in the form of heat. |
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What is the scientific definition of endothermic reaction? |
A reaction that absorbs energy. |
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What is the scientific definition of chemical equation? |
A short and easy way to show a chemical reaction. A chemical equation uses symbols. |
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What is the scientific definition of matter? |
Anything that has mass and takes up space. |
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What is the scientific definition of law of conservation of mass? |
The principle that the total amount of matter that is neither created or destroyed during any chemical or physical change. |
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What is the scientific definition of coefficient? |
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 each reactant. |
