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Properties of Matter
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| Question | Answer |
|---|---|
| What properties are used to describe matter? | Chemical property, physical property. |
| What are the differences between a homogeneous and heterogeneous mixture? | In a homogeneous mixture, the parts are mixed evenly so you can't see the different parts. In a heterogeneous mixture you can't see the different parts. |
| What are the characteristics of a mixture? | Made up of two or more substances and it's not chemically combined. |
| What are elements, and how do they relate to compounds? | Elements are the purest substances and cannot be broken down. They make up compounds. |
| Compare and contrast mixtures and compounds. | They both are made of two or more substances. Mixtures are not chemically combined. Compounds are chemically combined. |
| How is mass measured? | On a scale. |
| How is volume measured if it's a regular shaped object? | length x width x height = volume mass/volume |
| How do you measure volume using the displacement technique? | Write the starting amount of water. Put the object in. Write the ending amount of water. Subtract the ending volume from the starting volume. |
| Compare and contrast mass and weight. | Mass measures the amount of matter in an object. Weight measures the force of gravity on an object. |
| What is a pure substance? What makes a substance pure? | A pure substance cannot be broken down into anything simpler.A substance is pure because it cannot be broken down. |
| Define and calculate density. | Density relates the mass of a material in a given volume. Mass/volume |
| What is a physical change? | It doesn't change the substance, only the substance's form. |
| What is a chemical change? | It changes the substance. |
| What are the differences between amorphous and crystalline solids? | Crystalline solids are arranged in a set pattern of molecules and they melt at a specific temperature. Amorphous solids are set in a random pattern of molecules and they melt at a range of temperatures. |
| Identify the physical characteristics of matter. | State of matter, texture, color, flexibility. |
| Identify the chemical characteristics of matter. | Flammability, ability to react, new substances. |
| How is energy related to a phase change? | If the energy is high then the phase will change. |
| How is energy related to phases of matter? | As the energy goes up, the phase of matter changes. |
| What are the characteristics of a solid? | Frozen, vibrating molecules, low thermal energy. |
| What are the characteristics of a liquid? | Molecules sliding past each other, middle thermal energy, molecules moving slowly. |
| What are the characteristics of a gas? | Molecules moving fast, spread out molecules, high thermal energy. |
| Can you explain what is occurring in a phase change graph? | As the temperature goes up, the thermal energy rises. |
| What happens to a substance during changes between a solid and a liquid? | The molecules come closer together and they vibrate and move slower. |
| What happens to a substance during changes between a liquid and a gas? | The molecules spread out and move faster. |
| What happens to a substance during changes between a solid and a gas? | The molecules spread out a lot and move much faster and the thermal energy increases. |
| What is the Law of Conservation of Mass? | Matter is not created or destroyed in any chemical or physical change. |
| How is the Law of Conservation of Mass relevant to chemical reactions? | When the chemical change takes place and a new substance is created, no mass is lost. |
| How are the boiling point and condensation point similar/different? | In the boiling point, the molecules are spreading out and moving faster. In the condensation point, the molecules are coming closer together and starting to move slower. They are both direct opposites of each other on the phase change graph. |
| How are the freezing point and melting point similar/different? | In the freezing point, the molecules are starting to vibrate and are coming closer packed together. In the melting point, the molecules are coming to be sliding past each other and are slightly spreading out. They're opposites on the phase change graph. |
| What is the difference between vaporization and evaporation? | Evaporation is a type of vaporization where water vaporizes at the surface. |
Created by:
dantala2017
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