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Questions and Answers
Which of the following is NOT an example of a chemical reaction?
Which of the following is NOT an example of a chemical reaction?
- Melting of ice into water (correct)
- Combustion reactions
- Iron rusting
- Photosynthesis
Which type of reaction releases energy in the form of heat?
Which type of reaction releases energy in the form of heat?
- Exothermic reactions (correct)
- Combustion reactions
- Decomposition reactions
- Endothermic reactions
What is the color change observed in iron rusting?
What is the color change observed in iron rusting?
- Blue to green
- Green to yellow
- Silver to reddish brown (correct)
- Red to blue
Which type of reaction absorbs energy?
Which type of reaction absorbs energy?
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Which of the following is an example of an exothermic reaction?
Which of the following is an example of an exothermic reaction?
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