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Chem P&C study guide
A digital flashcard version of the Classification of Matter and Changes sheet
| question | Answer |
|---|---|
| What does heterogeneous mean? | inconsistent, non-uniform |
| What does homogeneous mean? | consistent, uniform |
| Wood (Homo or Hetero?) | Hetero |
| Freshly-brewed coffee (Homo or Hetero?) | Homo |
| Water (Homo or Hetero?) | Homo |
| Lucky Charms (Homo or Hetero?) | Hetero |
| Salt (Homo or Hetero?) | Homo |
| Dirt (Homo or Hetero?) | Hetero |
| Sausage and Mushroom Pizza (Homo or Hetero?) | Hetero |
| Air (Homo or Hetero?) | Homo |
| Milk (Homo or Hetero?) | Hetero |
| Gold (Homo or Hetero?) | Homo |
| What is an element? | A pure substance with only one type of atom |
| What is a compound? | A pure substance with more than one type of atom |
| What is a mixture? | A non-pure substance with more than one type of atom |
| Gold (Element, Compound, or Mixture?) | Element |
| Water (Element, Compound, or Mixture?) | Compound |
| Seawater (Element, Compound, or Mixture?) | Mixture |
| Sugar (Element, Compound, or Mixture) | Compound |
| A chocolate sundae (Element, Compound, or Mixture?) | Mixture |
| Air (Element, Compound, or Mixture?) | Mixture |
| Carbon Dioxide (Element, Compound, or Mixture?) | Compound |
| Sliver (Element, Compound, or Mixture?) | Element |
| Ice (Element, Compound, or Mixture?) | Compound |
| A Big Mac (Element, Compound, or Mixture?) | Mixture |
| What are physical properties? | Properties of a substance that can be observed without changing chemical composition |
| What are chemical properties? | Properties of a substance that do require a change in chemical composition to observe |
| Color (Physical or Chemical?) | Physical |
| Density (Physical or Chemical?) | Physical |
| Burns easily; flammable (Physical or Chemical?) | Chemical |
| Not affected by acids (Physical or Chemical?) | Chemical |
| Boils at 450 °C (Physical or Chemical?) | Physical |
| Reacts violently with chlorine (Physical or Chemical?) | Chemical |
| Good conductor of heat (Physical or Chemical?) | Physical |
| Dissolves readily in water (Physical or Chemical?) | Physical |
| Melts at 145 °C (Physical or Chemical?) | Physical |
| Malleable (Physical or Chemical?) | Physical |
| What is a physical change? | A change in a substance that doesn't change its chemical composition |
| What is a chemical change? | A change in a substance that DOES change its chemical composition |
| Grinding chalk into powder (Physical or Chemical change?) | Physical |
| Dissolving salt in water (Physical or Chemical change?) | Physical |
| Dissolving zinc in acid (Physical or Chemical change?) | Chemical |
| Tearing a piece of paper (Physical or Chemical change?) | Physical |
| Stretching copper into water (Physical or Chemical change?) | Physical |
| Burning gasoline (Physical or Chemical change?) | Chemical |
| Hammering gold into foil (Physical or Chemical change?) | Physical |
| Melting ice (Physical or Chemical change?) | Physical |
| Digesting food (Physical or Chemical change?) | Chemical |
| Making hydrogen from water (Physical or Chemical change?) | Chemical |
| What is an intensive property? | A physical property that does not change depending on the amount of a substance |
| What is an extensive property? | A physical property that changes depending of the amount of a substance |
| Mass (Intensive or Extensive?) | Extensive |
| Density (Intensive or Extensive?) | Intensive |
| Melting point (Intensive or Extensive?) | Intensive |
| Color (Intensive or Extensive?) | Intensive |
| Volume (Intensive or Extensive?) | Extensive |
| Length (Intensive or Extensive?) | Extensive |
Created by:
penny2242012
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