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Y 9 Chemistry

Y 9 Chemistry. Homework 8 April. Select short report on a chemical problem issue Select 3 words and make a glossary of terms Write 3 Comprehension questions Gmail : Drhillteach@gmail.com. Example. Review of rules. Ionic make ions of Nobel gases – ionic crystal

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Y 9 Chemistry

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  1. Y 9 Chemistry

  2. Homework 8 April • Select short report on a chemical problem issue • Select 3 words and make a glossary of terms • Write 3 Comprehension questions • Gmail : Drhillteach@gmail.com

  3. Example

  4. Review of rules • Ionic make ions of Nobel gases – ionic crystal • Covalent share by overlap – shaped molecule, macro molecule

  5. Mass conservation – R&V • Mass conserved because atoms don’t disappear or are appear • Validity – fair and correct procedure that measures what you think • Reliability – quality of answer, how repeatable • Need to know dependant and independent.

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