Classify each of the following as either a physical change or a chemical change. a. tearing a sheet of paper,
b. melting a piece of wax,
c. burning a log

A:Physical, B:Both, C: Chemical

Explanation:

Tearing paper is physical because only the appearance has changed. Melting wax can be either physical or chemical depending on whether the wax actually burns or not, burning a log is chemical because new substances are formed when wood burns.

може ли да зареждате повече информация, моля

it's c (engineer's do their work with mechanical stuff not on any living being)