Is a pure substance such as an element. Remember elements can not be broken down further by chemical or physical processes.
Is an element.
This is the atom.
element
A compound can only be separated into elements by chemical means.
It cannot be separated at all. It is an element.
salt water
elements
Elements cannot be changed into simpler substances by chemical means. To change them into simpler particles, you need nuclear means.
An element cannot be separated into simpler substances by chemical means.
A compound can only be separated into elements by chemical means.
Compound substances.
Salt water
studyisland answer : water
element
element
It cannot be separated at all. It is an element.
You think to an atom.
Yes, it is possible.
salt water
Element, noun ;;One of a class of substances under the periodic table that cannot be separated into simpler substances by chemical means (or chemical reactions.)