Question

PLEASE I NEED HELP ON THIS


Wood and oxygen are commonly burnt at campfires and all that's leftover is ash and char. Drag and drop the best conclusion about this chemical reaction into the white box.

DRAG & DROP THE ANSWER

The mass of the reaction increases as the wood gets hotter.

Mass Is lost in the reaction, that is why the ash is lighter.

The total mass of the reaction remains the same but mass leaves the wood as smoke.

Mass is gained in the reaction in the form of smoke.

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Answer 1

This problem is describing a combustion chemical reaction between wood and oxygen which produces carbon dioxide, water, ash and char. Thus, the best conclusion about the chemical reaction is required, considering the given choices. At the end, the answer is C. "the total mass of the reaction remains the same but mass leaves the wood as smoke", according to:

Chemical reactions:

In chemistry, chemical reactions are the way we understand chemical changes, in which the composition of matter changes. However, we must keep in mind that the law of conservation of mass always takes place as matter cannot be neither created nor destroyed.

In such a way, no matter how much wood is burnt, the total mass of the reaction always remain the same, the thing is, the ash and char won't have the same mass of the wood because carbon dioxide and probably water vapors are given off towards the air.

Thereby, the answer must be C. "the total mass of the reaction remains the same but mass leaves the wood as smoke".

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