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Matter, either a single element or a single compound- (made of one kind of particle), that has definite chemical and physical properties. Ex: Gold or Carbon dioxide
a mixture in which the composition is not uniform throughout, the substances are not evenly distributed
a mixture in which the composition is uniform throughout, the substances are evenly distributed
A substance that contains only a single type of atom-each element is made of a specific type of atom, but not a certain number of atoms. Ex: Gold
A substance that consists of two or more different types of atoms bonded together. Ex: Carbon Dioxide (CO2)
A change in any physical property of a substance, not the substance itself Ex: Breaking a piece of clay
The change of one substance into another substance. During chemical change, combinations of atoms in the original substances are rearranged to make new substances. Ex: Burning
The characteristics of a substance that can be observed without changing the identity of the substance: Ex: Texture
Properties that describe how substances can form new substances. Ex: Combustibility
Evidence of Change
Evidence that proves a substance has gone through a (chemical or physical) change Ex: for chemical change . . . Production of Odor, Change in Temperature, Change in Color, Formation of Bubbles, Formation of a Solid
A process by which a liquid becomes a gas. Caused by an increase in temperature which causes the substance to gain energy. Usually occurs at the surface of a liquid.. Occurs over time.
The process by which a geas changes its state to become a liquid. Caused by a decrease in temperature which causes the substance to loose energy.
When a solid changes from directly into a gas. This only occurs under certain conditions. Ex: Dry Ice
The process in which the particles of a substance (solute) are separated and absorbed into another substance (solvent).
A type of mixture that is a homogeneous mixture. Can be physically separated, but all portions of a solution have the same properties when they are still combined.
When a solution contains the maximum amount of solute that can be dissolved in the solvent at a given temperature.
Mass of Solute (in grams) divided by the mass of Solvent (in milliliters). Depends on the amount of solute dissolved into the solvent at a particular temperature.
A solid (the solute) that forms and settles out of a solution when the solution contains more than the solubility of solute at a certain temperature.
The amount of a substance that will dissolve in a certain amount of solvent at a given temperature.
A graph showing the change in the solubility of a substance corresponding to the change in temperature- it can be seen that the solubility increases with the temperature and each substance increases at different rates.
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