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Which of the following examples in nature represents a chemical change?
A. water freezing in a pond
B. a tree branch breaking
c. a tree buming after a lightning strike
D. steam rising from pavement

Sagot :

Simiiiiidn

Answer:

B

Explanation:

Chemical changes would mean changes that does not change in the form of matter.

A) water freezing in a pond is liquid to solid, so form of matter change, so it cannot be this one.

C) A tree buming is solid to gas, so form of matter change, so it cannot be this one.  

D) Steam rising from pavement is solid to gas, so for of matter change, so it cannot be this one.

On the other hand B, the matter stays in the same form, solid.

Tree branch to a tree branch.

I think the answer is B
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