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2.1-2.2 vocab
vocab
Term | Definition |
---|---|
atom | a small particle that is a building block of matter |
compound | a substance made of two or more elements that are joined in a specific combination |
element | a substance made of only one kind of atom |
heterogeneous | a mixture in witch the substances are not evenly mixed |
homogeneous | a mixture in witch two or more substances are evenly mixed but not bonded together |
matter | anything that has mass and takes up space |
mixture | matter that can vary in composition |
molecule | two ore more atoms that are held together by chemical bonds and act as a unit |
substance | matter with a composition that is always the same |