Chem Unit 5

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Last updated 12:18 PM on 5/13/26
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6 Terms

1
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signs of a chemical change

  • Color change

  • formation of a gas

  • evolution of heat or light

  • evolution of an odor

  • formation of a precipitate

2
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individual element elements are called___

atoms

3
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ionic compounds are called_____

units

4
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covalent compounds are called____

molecules

5
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acids are identified as____

units

6
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3 questions to ask when writing formulas/sentence form too

  1. how many?

  2. of what?

  3. in what state?