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Review for Chemistry Test
|The smalllest parts of an element that retains the chemical properties of an element.
|A type of pure substance that can't be changed into a simpler substance. It is also only made up of one type of atom.
|Anything that takes up space is composed of matter including atom and molecules.
|Positvely charged molecules located in an atoms nucleus.
|Negatively charged particles that orbit around the nucleus.
|Particles that have a neutral charge and are located in an atoms nucleus.
|The first person to come up with the idea of atoms and to state that atoms are indivisble. He also said that dividing an object a multiple times will eventually lead you to an atom.
|He proved Democritus's theory and he also added that atoms are to small to be seen with the naked eye.
|He used the gold foil experiment and found that atoms had a nucleus.
|He was the scientist who came up with the plum pudding experiment to prove that elctrons are negatively charged.
|He stated that electrons orbited around the atoms nucleus.
|A type of substance that is composed of two or more elements that are chemically combined. It is only able to turn into a simpler substance by a chemical change.
|A substance that is composed of two or more different physically combined and they keep there own physical properties.
|A mixture that is not the same throughout the mixture and the componenets of the mixture can be distinguished with the naked eye.
|A mixture that retains the same physical properties throughout the mixture and can't be visually distinguished with the naked eye.
|A property that can be studied and observed without changing the matter being studied.
|(Physical Property) The color of a pigment in a substance.
|(Physical Property) The property that describes the realtionship between an objects mass and its volume.
|The temperature at which a pure substance melts.
|The temperature at which a pure substance boils.
|Properties that can only be noticed when they undergo a change in chemical composition.
|Ability to Burn
|A chemical process that involves an object or substance reacting quickly to oxygen and producing light and heat.
|Ability to Rust
|A chemical process that invovles an object or substance reacting slowly with oxygen.
|When a substance changes fom one state of matter to another and the composition of the object has not changed.
|Changes in State of Matter
|When a substance changes from one state of matter to another.
|Changes in Size or Shape
|When a substance changes from one size or shape to another.
|The result of the formation of one or more new substances with new physical and chemical properties.
|When a substance changes color the chemical making of a subtance might have changed.
|When a substance is combined with another substance there might be an increase or decrease in temperature.
|Formation of a Precipatate
|When two substances are combined and a solid or a precipatate is formed.
|Formation of a Gas
|When solids or liquids are combined they migt form gas bubbles.