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- 1. Multiple Choice
Name this chemical: Cu(OH)2
copper oxide
copper(II)hydroxide
copper(I)hydroxide
carbon dioxide
- 2. Multiple Choice
What does the "thermal" in thermal decomposition mean?
sulfur
catalyst
heat
oven
- 3. Multiple Choice
copper(II)carbonate → ___________ + carbon dioxide
copper(I) oxide
copper(II) oxide
copper oxide
copper(III) oxide
- 4. Multiple Choice
metal hydroxide (+ heat) → ____________ + _________
metal carbonate + water
metal oxide + carbon dioxide
carbon dioxide + water
metal oxide + water
- 5. Multiple Choice
What colour is copper (II) oxide
white
green
blue
black
- 6. Multiple Choice
______________ (+ heat) → zinc oxide + carbon dioxide
zinc carbonate
zinc oxide
zinc dioxide
zinc hydrogen carbonate
- 7. Multiple Choice
Why does thermal decomposition need heat energy
to make magic
to break bonds
to make water
to work as a catalyst
- 8. Multiple Choice
sodium nitrate (+heat) →
sodium nitrite + oxygen
sodium nitrate + oxygen
sodium oxide + nitrogen dioxide
sodium oxide + nitrogen dioxide + oxygen
- 9. Multiple Choice
calcium nitrate (+heat) →
calcium oxide + nitrogen dioxide + oxygen
calcium nitrite + oxygen
calcium + nitrogen dioxide + oxygen
calcium oxide + nitrogen dioxide
- 10. Multiple Choice
silver nitrate (+heat) →
silver + nitrogen oxide + oxygen
silver oxide + nitrogen dioxide
silver + nitrogen dioxide
silver nitrite + oxygen
- 11. Multiple Choice
sodium carbonate (+heat) →
sodium oxide + carbon dioxide
sodium oxide + carbon monoxide
sodium oxide + carbon
no reaction
- 12. Multiple Choice
zinc hydroxide (+heat) →
zinc oxide + water
zinc + water
zinc oxide + hydrogen
zinc + hydrogen
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