Glossary of CHEMISTRY CHAPTER 2
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- anything that has mass and takes up space.
- the amount of matter that an object contains.
- Matter that has a uniform and definite composition.
- Physical property
- a quality or condition of a substance that can be observed or measured without changing the substance’s composition.
- matter that has definite shape and volume.
- the form of a matter that flows, has a fixed volume, and takes the shape of its container.
- a form of matter that takes both the shape and volume of its container.
- the gaseous state of a substance that is generally a liquid or solid at room temperature.
- Physical change
- a change in matter that doesn’t alter the chemical composition of the material.
- a physical blend of two or more substances.
- Heterogeneous Mixture
- a mixture not uniform in composition.
- Homogeneous Mixture
- a mixture with completely uniform composition. Also called a SOLUTION.
- HOMOGENEOUS MIXTURE
- any part of a system with uniform composition and properties.
- a method of separating components in tap water. Boil the water to produce a vapor which is then condensed again to a liquid.
- the simplest forms of matter that can exist under normal laboratory conditions.
- substances that can be separated into simpler substances only by chemical means.
- chemical symbol
- one or two letter symbol representing an element.
- chemical reaction
- one or more substances change into new substances.
- the starting substances in a chemical reaction.
- the substances formed in a chemical reaction.
- chemical property
- the ability of a substance to undergo a chemical reaction and to form new substances.
- Law of Conservation of Mass
- states that in any physical change or chemical reaction, mass is neither created or destroyed; it is conserved.
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