Before burning, the initial mass of a candle is 9.5 grams. After burning for several minutes, the final mass is 5.4 grams. Which of the following is the best explanation for the measured masses before and after the chemical reaction?
A The mass in the wax candle transforms into energy that is burned, hence the higher mass after the reaction.
B The mass in the wax candle transforms into a gas that is released when burned, hence the lower mass after the reaction.
C This cannot be an accurate measure of the final mass because the products should always have a lower mass than the products according to the law of conservation of mass.
D This cannot be an accurate measure of the final mass because the products should always have a greater mass than the products according to the law of conservation of mass
Answers
Answer: C This cannot be an accurate measure of the final mass because the products should always have a lower mass than the products according to the law of conservation of mass.
Explanation: Hope this helped you
Answer:
The mass in the wax candle transforms into a gas that is released when burned, hence the lower mass after the reaction.
Explanation:
From the above question,
They have given :
Before burning, the initial mass of a candle is 9.5 grams. After burning for several minutes, the final mass is 5.4 grams. Which of the following is the best explanation for the measured masses before and after the chemical reaction?
A The mass in the wax candle transforms into energy that is burned, hence the higher mass after the reaction.
B The mass in the wax candle transforms into a gas that is released when burned, hence the lower mass after the reaction.
C This cannot be an accurate measure of the final mass because the products should always have a lower mass than the products according to the law of conservation of mass.
D This cannot be an accurate measure of the final mass because the products should always have a greater mass than the products according to the law of conservation of mass
When a candle burns, the heat generated by the reaction causes the wax to vaporize, producing gases such as carbon dioxide and water vapor. These gases escape into the air, causing the total mass of the candle to decrease. This decrease in mass is reflected in the final mass of 5.4 grams, which is lower than the initial mass of 9.5 grams.
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