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  • this topic was really helpful in developing my understanding of ionic compounds and how they're formed. NZ High School, 24 Jul 2014
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  • Very useful in conjunction to solidify understanding of standard reduction couples, with earlier topic. NZ High School, 9 Jul 2014
  • Really helpful! I feel like I'm starting to understand basic equations better. Inverse vs proportional. Helpful activities on units / scientific notation. NZ High School - Auckland, 2 Jul 2014
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