Chemistry - Chemical Reactions - Types of reactions - combination/synthesis - Two Become One

A pattern-recognition intro for Grade 9-10. Show 4 equations: 2Na + Cl₂ → 2NaCl. 2Mg + O₂ → 2MgO. N₂ + 3H₂ → 2NH₃. CaO + H₂O → Ca(OH)₂. Q1: 'What do ALL these reactions have in common?' A) They all produce gases, B) Two or more reactants combine into ONE product (correct!), C) They all involve metal

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Chemistry - Chemical Reactions - Types of reactions - combination/synthesis - Two Become One
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Chemistry - Chemical Reactions - Types of reactions - combination/synthesis - Two Become One

vivmagarwal
vivmagarwalJan 29, 2026

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A pattern-recognition intro for Grade 9-10. Show 4 equations: 2Na + Cl₂ → 2NaCl. 2Mg + O₂ → 2MgO. N₂ + 3H₂ → 2NH₃. CaO + H₂O → Ca(OH)₂. Q1: 'What do ALL these reactions have in common?' A) They all produce gases, B) Two or more reactants combine into ONE product (correct!), C) They all involve metal

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ChemistryChemical ReactionsGrade 9, MYP Grade 9, Class 10

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