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Chemistry Chapter 3
Mixtures, Properties, % composition, changes
| Question | Answer |
|---|---|
| Two or more different kinds of particles that are not chemically joined to each other. | mixture |
| Matter can be broken down into 2 catagories. What are they? | Pure Substances and Mixtures |
| What is considered a pure substance? | Elements and compounds |
| What are the two types of mixtures? | Heterogeneous and homogeneous |
| Which type of mixtures looks like it is made of different substances visually? | Heterogeneous |
| Which type of mixtures look the same, uniform throughout? | Homogeneous |
| separates solids from liquids by using a porous barrier | Filtration |
| What type of change is used during distillation, crystallization or chromatography? | Physical |
| Element or Compound: silicon | Element |
| Element or compound: sodium chloride | Compound |
| Element or compound: francium | Element |
| A substance that cannot be separated into simpler substances by physical or chemical means is a(n) | Element |
| A chemical combination of two or more different elements is a | Compound |
| Can be purified physically but requires chemical reactions to break into its components. | Compound |
| A Substance that can be separated into its components through physical methods? | Mixture |
| Mixture of metals | Alloy |
| Properties that can be observed without changing the substance's chemical structure or composition. | Physical |
| Properties observed when the substance's atoms are rearranged, broken apart or newly bonded. | Chemical |
| Chemicals that join together to form a new substance. | reactants |
| New chemical formed in a chemical reaction. | product |
| A way of writing out what happens in a chemical reaction using the symbols that represent the substances involved. | symbol equation |
| State of matter with unchanging shape or volume | Solid |
| State of matter that expands to take the shape of container (volume increases) | Gas |
| State of matter that takes shape of container but does not take the volume | Liquid |
| State(s) of matter that flow | Gas and Liquid |
| Physical Change or Chemical Change? Boiling | Physical |
| Physical Change or Chemical Change? Burning | Chemical |
| Physical Change or Chemical Change? Rusting | Chemical |
| Physical Change or Chemical Change? Freezing | Physical |
| Physical Change or Chemical Change? Ripping | Physical |
| Physical Change or Chemical Change? Rusting | Chemical |
| Physical Change or Chemical Change? Tarnishing | Chemical |
| Physical or Chemical Property? Melting point | Physical |
| Physical or Chemical Property? Density | Physical |
| Physical or Chemical Property? Hardness | Physical |
| Physical or Chemical Property? reacts to oxygen | Chemical |
| Physical or Chemical Property? bubbles when with acid | Chemical |
| Physical or Chemical Property? Turns green when exposed to air | Chemical |
| Physical or Chemical Property? ability to rot | Chemical |
| Physical or Chemical Property? Malleable | Physical |
| Matter is neither created nor destroyed, but it can be changed from one form to another | Law of conservation of mass(matter) |
| Mass of sample / total mass x 100 = ? | Percent composition |
| (Result-expected result)/expected result x100=? | Percent Error |
Created by:
benkersn
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