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Ch.7,les.5

Published on Nov 25, 2015

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1.

CH.7,LES.5 COMPOUNDS

BY:EVELYN CRUZ
2.

CHEMICAL CHANGE

A CHEMICAL CHANGE IS A CHANGE OF MATTER THAT RESULTS IN A NEW SUBSTANCE THAT IS DIFFERENT FROM THE ORIGINAL SUBSTANCES.
3.

EXAMPLE OF CHEMICAL CHANGE

  • Rust
4.

COMPOUND

A COMPOUND IS FORMED WHEN THE ATOMS OF TWO OR MORE ELEMENTS COMBINE.
5.

EXAMPLE OF COMPOUND

  • Marshmallows
6.

CHEMICAL FORMULA

A CHEMICAL FORMULA HAS SYMBOLS TO SHOW WHICH ELEMENTS HAVE COMBINED TO FORM THAT PARTICULAR COMPOUND.
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EXAMPLE OF CHEMICAL FORMULA

  • Sulfur dioxide
8.

SUBSCRIPT

SUBSCRIPTS INDICATE THE NUMBER OF ATOMS THAT HAVE COMBINED.
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EXAMPLES OF SUBSCRIPT

10.

HYDROCARBON

HYDROCARBONS ARE MOLECULES THAT ARE COMPOSED OF HYDROGEN AND CARBON.
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EXAMPLE OF HYDROCARBON

  • Products from crude oil

Evelyn Cruz