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Grade 8 8.5(E)
investigate how evidence of chemical reactions indicate that new substances...
Term | Definition |
---|---|
Chemical reactions | the process in which atoms are rearranged and chemical bonds are broken and formed to produce a chemical change of a substance |
Property | characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed |
Substances | a pure form of matter |
Mixture | contains a combination of different atoms or molecules and is therefore said to be 'impure' |
React | to undergo or cause to undergo a chemical reaction |
Solid | One of the three basic forms of matter, composed of molecules that have little or no ability to exchange places. Unlike gases and liquids, a solid has a fixed shape, and unlike gases, a solid also has a fixed volume. |
Liquid | One of the three basic forms of matter, composed of molecules that can move short distances. Unlike a solid, a liquid has no fixed shape, but instead has a characteristic readiness to flow and therefore takes on the shape of any container. |
Dissolve | to go or cause to go into solution |