Quantitative chemistry

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Basic concepts

  • Matter: anything which has mass and occupies space
  • Atoms: the smallest chemical unit, indivisible by chemical means
  • Elements: 1 type of atom which may or may not be bonded. 
  • Compounds: Substances made from different types of atoms bonded
  • Molecule: A covalently bonded unit. 
  • Pure substances: A single type of compound or element
  • Mixtures: 2 or more different types of compounds and/or elements, separable by physical means.
  • Isotopes: Different types of atoms with the same number of protons but different number of neutrons. Isotopes may be radioactive. 

1.1.1 Apply the mole concept to substances
1.1.2 Determine the number of particles and the amount of substance in moles. 


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