Atoms, Elements, Compounds Flashcards
1
Q
What is an element?
A
A substance that cannot be broken down into other substances by any chemical change
2
Q
What is a compound?
A
A pure substance formed when two or more elements react together
3
Q
What is a mixture?
A
Two or more substances combined without a chemical reaction - they can be separated easily
4
Q
What is an atom?
A
An atom is a particle of matter that uniquely defines a chemical element.