Curriculum
Course: HIA International — Grade 8
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Curriculum

HIA International — Grade 8

Unit 1: Photosynthesis and the carbon cycle

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Unit 2: Properties of materials

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Unit 3: Forces and energy

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Unit 4: Maintaining life

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Unit 5: Reactivity

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Unit 6: Sound and space

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Unit 7: Genes and inheritance

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Unit 8: Rates of reaction

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Unit 9: Electricity

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Quiz

5.5 Rearranging Atoms — Visual & Photo Quiz

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  • Questions count: 1
  • Passing grade: B+
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1.
Look at the balanced chemical equation model for the combustion of methane: CH₄ + 2O₂ → CO₂ + 2H₂O. What happens to atoms during any chemical reaction?
Dr Dabour Hub Academy - figure 1
Atoms are rearranged by breaking and forming chemical bonds; no atoms are created or destroyed (mass is conserved)
Atoms are destroyed and converted into empty space
New atoms of different elements are created from nothing
The number of protons in each nucleus changes
Part of Unit 5: Reactivity — see every lesson and quiz in this unit.
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