Acids and Bases

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  • Created by: alana
  • Created on: 10-11-12 02:52

1. What is a neutron

  • A component of the nucleus with a relative mass number of 1 and no charge
  • A component of the nucleus with a relative mass number of 1 and a positive charge
  • A component of the nucleus with a relative mass number of 1 and a negative charge
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2. What is Particle Theory

  • The theory that matter is made up of tiny particles which are constantly moving
  • The theory that in order for a chemical reaction to occur two or more particles must collide with sufficient energy and at the correct orientation
  • is the measure of how much there is of a given substance

3. What is a particle

  • one of the extremely small constituents of matter. e.g. atoms molecules ions common particles
  • atoms of the same element that have the same atomic number but different atomic mass (no. of neutrons)
  • A neutrally charged atom or group of atoms caused by losing one or more electrons

4. What is activation energy?

  • least amount of energy required to start a chemical reaction
  • a substance that speeds up a chemical reaction but is not used up in that reaction
  • is the defining structure of an element. cannot be broken by any chemical means

5. What is a proton

  • component of the nucleus with a relative mass number of 0 and charge of 0
  • Component of the nucleus with a relative mass number of 1 and charge of +1
  • component of the nucleus with a relative mass number of 1 and a charge of -1

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