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2.1 introduction
peaches pnhs intro to i.s.h vocab
Question | Answer |
---|---|
What is a pure substance? | It is matter that always has exactly the same composition. |
What is an element? | An element is a substance that cannot be broken down into simpler substances. |
What is a compund? | A compound is a substance that is made from two or more simpler subtances and can be broken down into this esimpler substances. |
Why does every sample of a given substance have the same properties? | Every sample of a given substance has the same properties because a fixed unformed composition. |
Explain Solutions,suspensions,and colloids. Give exampes of each. | |
Explain why the composition of an element is fixed. | An element has a fixed composition because it contains only one type of atom. |
Why can the properties of a mixture vary? |