Definitions
What is an element
A pure substance made up of only one type of atom
what is an atom
The smallest unit of matter
How many different types of atoms are in H2O
2
H and O
What is a pure substance
A substance made of only one type of particle, can be an element or a compound
Give a reason for your answer: Is the following a pure substance? H2O
yes
How many atoms are in the following: HNO3
5
What is a mixture
A substance made of two or diffferent particles not bonded together
Give a reason for your answer: Is the following a pure substance? H2O & O2
No because it has two different particles it is a mixture
How many different types of atoms are in H2SO4
3
H S O
What is a compound?
A pure substance made of two or more types of atoms bonded together in a fixed ratio
Draw the following T3Sq2R2
draw on board
How many atoms are in the following AbC3DeFg
6
What is a molecule?
Two or more atoms bonded together
what is a particle
The smallest unit of a substance
How many atoms are in the following: HGbTRSq4NO3
11