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Chemistry

Chemistry. Chemistry is the science concerned with the composition, structure, and properties of matter. Atoms are the basic units in chemicals. Atoms are made of subatomic particles . protons (+) neutrons (0) electrons (-).

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Chemistry

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  1. Chemistry

  2. Chemistry is the science concerned with the composition, structure, and properties of matter.

  3. Atoms are the basic units in chemicals.

  4. Atoms are made of subatomic particles. • protons (+) • neutrons (0) • electrons (-)

  5. An element is a pure substance made up of only one kind of atom.All matter is made up of elements.

  6. Reading the Periodic Table

  7. Molecules • atoms combine to form molecules, which can be pure elements or combinations of two or more elements. • molecules are held together by chemical bonds.

  8. NaCl

  9. NaCl in Solution

  10. Covalent Bonds • formed when atoms share electrons • sharing can be unequal

  11. Chemical Reactions • reactants • products example: CO2 + H2O  C6H12O6 + O2

  12. Acids and Bases

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