. Flashcards
1
Q
What is an element?
A
A substance with one particular type of atom
2
Q
What is a compound?
A
A substance that has been chemically combined with 2 or more elements
3
Q
Is this an element or compound: H2O
A
Compound
4
Q
How many atoms are in this compound: CH2O2
A
5 atoms
5
Q
What is a mixture
A
Two or more substances that have been mixed together
6
Q
Is water a mixture?
A
No, it’s a compound
7
Q
What is the chemical formula for water
A
H2O
