Chemistry quiz 1

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Last updated 7:14 PM on 8/27/26
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9 Terms

1
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Rules for drawing a Particle Diagram:

  1. circles = atoms

  2. each element = different color

  3. NEED a key


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<p>Element </p>

Element

a single kind of atom on the periodic table

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<p>Compound</p>

Compound

2 or elements combined together

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<p>Pure substance </p>

Pure substance

only one kind of thing (only one element, or only one compound)

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<p>Mixture</p>

Mixture

2 or more different pure substance together

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Homogenous

Everything is same through out

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Heterogeneous

different through out

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Apply the law of Conservation of mass to situation involving chemical and physical changes

If you keep your system closed whether you have a chemical or physical change the mass will not change

LAW: mass before=mass after

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Problem solving strategy

  1. Identify the problem

  2. Brainstorm

  3. Make a plan

  4. Carry out plan/ revise

  5. reflect

  6. Have a good attitude