Question

Which best describes a compound such as sodium chloride?

a pure substance that can be separated into different elements by physical means
a mixture of two common substances that can be separated by chemical means
a mixture of two common elements that can be separated by physical means
a pure substance that can be separated into different elements by chemical means

Answer 1

a pure substance that can be separated into different elements by chemical means

Answer on edg

Answer 2

a pure substance that can be separated into different elements by chemical means