PLEASE SOMEONE HELP ME
Which of the claims about the burning of wood is supported by Joan's model? Select all the claims that are
supported.
A. Matter is conserved during the burning of wood.
n
B. Chemical energy is conserved during the burning of wood.
n
C. Burning wood involves a series of chemical reactions that occur in one direction only.
Burning wood involves a series of chemical reactions that occur in both the forward and reverse
directions.
n
E. Burning wood involves oxygen as well as carbon.

The claims which are supported are :

A. Matter is conserved during the burning of wood.

C. Burning wood involves a series of chemical reactions that occur in one direction only.

E. Burning wood involves oxygen as well as carbon.

Explanation:

Burning of wood involves wood reaction with oxygen in which carbon dioxide is released.When wood is heated, it results in production of a substance that reacts easily with oxygen leading to ignition of wood and its burning.Burning of wood is a type of thermal decomposition.Burning of wood releases energy in the form of heat.Once wood is burned it can not be reacted or changed back to wood. So, this reaction is considered as irreversible reaction, that occurs only in one direction.Matter is conserved during the burning of wood as a chemical reaction does not result in creation or destruction of matter.