L1 CLASSIFYING MATTER

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16 Terms

1
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Matter is anything that has mass and takes up __________.
Space.
2
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Atoms are the small particles that make up __________.
Matter.
3
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The center of an atom is called the __________.
Nucleus.
4
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Protons have a __________ charge.
Positive.
5
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Electrons move quickly in an area around the nucleus called the __________.
Electron cloud.
6
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A __________ is matter with a composition that always stays the same.
Substance.
7
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An element consists of just one type of __________.
Atom.
8
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The number of protons in an atom is known as the __________.
Atomic number.
9
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A __________ is a type of substance containing atoms of two or more different elements chemically bonded together.
Compound.
10
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The combination of symbols and numbers that represents a compound is called a __________.
Chemical formula.
11
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A __________ can vary in composition and can be separated by physical methods.
Mixture.
12
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In a heterogenous mixture, the individual substances are __________ mixed.
Not evenly.
13
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A homogenous mixture is also known as a __________.
Solution.
14
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In a solution, the substance present in the largest amount is called the __________.
Solvent.
15
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The substances that are dissolved in a solution are called __________.
Solutes.
16
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To dissolve means to form a solution by mixing __________.
Evenly.