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Science T1
| Question | Answer |
|---|---|
| Define Elements | Substances that are pure, atoms make up elements making them one of the smallest particles |
| Define Compound | Forms when two or more elements combine chemically in the same proportions. |
| Heterogenous Mixture | Has visible particles that settle out |
| Homogenous Mixture | Same throughout (air is not a compound) |
| Physical Properties (8) | Hardness, freezing, boiling, evaporation, conduct heat/electricity, magnetism, and dissolve. |
| Evidence of Physical Change (3) | Change in shape, change in state of matter, and dissolve. |
| Physical Property | Can use senses |
| Chemical Property | Changes into new substance |
| Chemical Properties (2) | Flammability and reactivity |
| Evidence of Chemical Change (4) | Bubbles, changes color, odor, and solid comes out of a solution. |
| Define Chomotagraphy | Separates out colored substances |
| Define Filtration | We used this separate sand from water |
| Define Evaporation | Could be used to get salt out of water |
| Define Fractional Distillation | Separate out two liquid with different boiling points |
| Law of Conservation of Mass/Matter | Matter is neither lost nor gained |
| Law of Conservation of Mass/Matter Process | Reactants --> Rxn Occurs --> Products |
| Balance out the equation: Ng2 + K = K + Ng | Ng2 + K = K + 2Ng |
| Is this equation balanced? Cu4 + Au10 + Cu + K4 = (Cu)5 + (Au2) 5 | Yes |
| Balance this equation: ____ Na3PO4 + ____ KOH --> ____ NaOH + ____ K3PO4 | 1 Na3PO4 + 3 KOH --> 3 NaOH + 1 K3PO4 |
| Balance this equation: ____ BaS + ____ PtF2 ____ BaF2 + ____ PtS | 1 BaS + 1 PtF2 --> 1 BaF2 + 1 PtS |
| Define Simple Distillation: | Good for separating a liquid from a solution |
| Homogeneous or Heterogenous? Soda with Bubbles | Heterogenous |
| Homogeneous or Heterogenous? Sugar | Homogeneous |
| Homogeneous or Heterogenous? Oil | Homogeneous |
| Homogeneous or Heterogenous? Italian Salad Dressing | Heterogenous |
| Homogeneous or Heterogenous? Aluminum Foil | Homogeneous |
| Homogeneous or Heterogenous? Beach Sand | Heterogenous |
| Why does air not have a definite formula? | It is not a compound |
| What is the correct order or obtaining salt from a mixture of sand and salt? | Evaporation; filtration; dissolving in water |
Created by:
16esmith
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