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Vocab Quiz 5
| Term | Definition |
|---|---|
| Physical Change | a modification to the appearance or form of a substance that does not alter its chemical composition |
| Chemical Change | a transformation that results in the formation of a new substance or substances with different chemical properties from the original material |
| Precipitate | a new solid that forms when two liquids are mixed in a chemical reaction. |
| Rust | a reddish-brown substance formed when iron or steel undergoes oxidation in the presence of both oxygen and water |
| Evidence of a Chemical Change | production of a gas or precipitate; change in color or temperature |
| Element | a pure substance that cannot be broken down into simpler substances by ordinary chemical means. Each one is defined by the unique number of protons in its atoms, a number known as the atomic number. |
| Metal | elements that readily lose electrons to form positive ions and exhibit properties like high electrical and thermal conductivity, malleability, and a characteristic luster. |
| Metalloid | a chemical element that has properties intermediate between those of a metal and a nonmetal |
| Nonmetal | an element that lacks typical metallic properties, such as metallic luster, high conductivity, and malleability. |
| Atom | the fundamental building block of matter and the smallest unit of a chemical element that retains the element's properties |
Created by:
MrsStahl
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