Joan uses a model to show how wood burns at the level of atoms and molecules. Her model tracks 840 carbon atoms that make up a s

Question

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Joan uses a model to show how wood burns at the level of atoms and molecules. Her model tracks 840 carbon atoms that make up a s

mall fraction of a wood sample. The table shows how the carbon atoms are converted into carbon dioxide as the wood burns over time. Which of the claims about the burning wood is supported by Joan's model?
A. matter is conserved during the burning of wood

B. chemical energy is conserved during the burning of wood

C. burning wood in bossier series of chemical reactions that occur in one direction only

D. burning wood involves a series of chemical reactions that occur in both the forward and reverse directions

E. burning wood involves oxygen as well as carbon

Biology

1 answer:

-BARSIC- [1.9K] · Answer 1 · 2026-03-19T17:55:16+03:00

Answer:

The right answer is A. Matter is preserved throughout the combustion of wood.

Explanation:

A key principle regarding matter suggests that the mass prior to a reaction equals the mass afterward.

According to Joan's experiment, she found that the quantity of carbon atoms stays at 840 during the combustion process. The count of carbon atoms present in the wood initially matches the amount present in carbon dioxide once combustion completes. This illustrates that Joan's model endorses the conservation of matter principle during wood burning.