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- 1. Multiple-choice30 seconds1 ptA green substance is heated. It turns black and a gas is given off.
Is this a decomposition reaction?YesNo - 2. Multiple-choice30 seconds1 ptTwo solutions are mixed together. A white solid is formed.
Is this a decomposition reaction?YesNo - 3. Multiple-choice30 seconds1 ptYou burn a piece of toast. It turns black.
Is this a decomposition reaction?YesNo - 4. Multiple-choice30 seconds1 ptOne colourless liquid is added to another colourless liquid. They turn pink.
Is this a decomposition reaction?YesNo - 5. Multiple-choice30 seconds1 ptCalcium carbonate is heated. Calcium oxide is formed and carbon dioxide is given off.
Is this a decomposition reaction?YesNo - 6. Multiple-choice30 seconds1 ptA solution of silver nitrate is added to a solution of potassium chloride. A white solid of silver chloride is formed.
Is this a decomposition reaction?YesNo - 7. Multiple-choice30 seconds1 ptMagnesium Oxide --> magnesium + oxygen
Is this a decomposition reaction?YesNo - 8. Multiple-choice30 seconds1 ptmagnesium + oxygen --> magnesium oxide
Is this a decomposition reaction?YesNo - 9. Multiple-choice30 seconds1 ptwater --> hydrogen + oxygen
Is this a decomposition reaction?YesNo - 10. Multiple-choice30 seconds1 pthydrogen + oxygen ---> water
Is this a decomposition reaction?YesNo - 11. Multiple-choice30 seconds1 pt
The best thing about today is Science class!
Yes
No
Depends on what we are having for dinner.
Sometimes
