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Chapter 2 Chem Notes
Chapter 2 notes
Question | Answer |
---|---|
A physical blend of two ore more substance | Mixture |
a mixture that is not uniform in composition | heterogeneous mixture |
a mixture that has a uniform composition throughout | homogeneous mixture |
another name for a homogeneous mixture | solution |
any part of a sample that has uniform composition and properties | phase |
separation of a liquid by boiling followed by condensation | distillation |
a method for separating a solid from a liquid in a heterogeneous mixture | filtration |
A solution has a uniofrm composition | true |
Solutions are liquids | false |
A heterogeneous mixture contains two or more phases | true |
the simplest form of matter | Element |
substance that can be separated into simpler substances only by chemical means | compound |
one or two letters that represent an element | chemical symbol |
a change that produces matter with a different composition than the original matter | chemical change |
potassium | K |
lead | pb |
sodium | na |
copper | cu |
iron | fe |
silver | ag |
water | Compound |
oxygen | element |