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science test MORGAN
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What do scientists classify matter into _______________ &__________________
Substances and Mixtures
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Name solute
the chocolate that you put in milk
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hetero=
= different
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what happens when atoms combine
They form different types matter
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where are protons neutrons and electrons located
P+N- Nucleus E- Electron cloud
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Name a solvent
Milk
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A substance made up of only one kind of atom
Element
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give an example of a molecule
O2= Oxygen Gas O3= Ozone
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compound=
= different
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what is most of the mass of the atom is located here in the center of an atom called
the nucleas
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is a solution a heterogeneous or homogeneous mixture
homogeneous
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a small particle that is the building block of matter
Atom
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substances are divided into what two groups
elements and compounds
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homogenous=
= same
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What is a positive charge located in the nucleas
a proton
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give an example of a compound
EX: H2O- water CO2- Carbon Dioxide
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What is a negative charge located in the electron cloud
a Electron
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What is a neutral charge located in the nucleas
Neutrons
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Give a example of a element
EX: Helium=He Neon=Ne Oxygen=O
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mixtures are divided into what two groups
hetero and homogeneous
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A substance made up of two or more elements that are chemically joined in a specific combination
compound
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what is the region around he nucleas which is mostly empty space called? Electrons move about in this area
The Electron Cloud
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2 or more atoms held together by chemical bonds and act as a unit
molecules
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element=
= same
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