A burning match releases 862.3 J of energy. Convert the energy released by 20 matches to kilojoules. Assume there are 4.184 joules per calorie, and pay attention to significant digits in your answer.
Added by Sherina R.
Step 1
Energy released by 1 match = 862.3 J Energy released by 20 matches = 20 * 862.3 J = 17246 J Now, we need to convert this energy to kilojoules. Show more…
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