Week 21 - Science Class Five
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9 terms
Terms | Definitions |
|---|---|
 chemical reaction | a process in which one or more substances are changed into others |
| chemical bond | the force that holds two atoms together as a result of the sharing of electrons between them |
| chemical change | a process in which one or more substances are changed into others |
| pH | A scale that measures the acidity or baseness of a solution |
| acid | A substance that is characterized by sour taste and has a pH of less than 7. |
| base | A substance that is characterized by bitter taste, slippery feel, and a pH of 8 or higher. |
| indicator | A dye that can be used to show the pH level of a solution |
| neutralize | To reduce the acidity of a substance with a base, and vice versa |
| corrode | to eat into or gradually wear away, as by air, water, or an acid |
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