The study of chemicals is called chemistry. There are two types of elements and these are metals and nonmetals.
The correct answer is option C which is both physical changes because the wax melted and changed shape and chemical change because light and heat were formed as the candle burned.
What is a physical change?
- Physical changes are changes affecting the form of a chemical substance, but not it's chemical composition.
- Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.
What is a chemical change?
- Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances.
- These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.
According to the question, the correct answer is option C as it is explained the reason correctly.
Hence, the correct answer is option C.
For more information about the changes, refer to the link:-
https://brainly.com/question/16759172
