Mixtures/Purity Flashcards
What is an element?
A substance that contains only one type of atom
What is a compound?
A substance containing 2 or more types of atom chemically bonded together
What is a mixture?
2 or more substances that aren’t chemically bonded
Can mixtures be seperated easily?
Yes
What is special about a pure substance?
It has the same composition in every part of it so the physical properties are the same in every part.
Why is it important that a pure substance has the same physical properties in all parts of it.
It means it will all melt at one point. this makes it easier to tell when a substance is pure.
Why is it important that a pure substance has the same physical properties in all parts of it.
It means it will all melt at one point. this makes it easier to tell when a substance is pure.
When does a pure substance melt?
At one specific temperature
