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Matter
| Question | Answer |
|---|---|
| What are the three parts of the kinetic molecular theory? | 1. All matter is made of atoms 2. All atoms are in motion 3. Faster moving atoms have more energy |
| What happens to the movement of atoms in a substance as it gets colder? | They move slower and closer together |
| List the states of matter in order from- slowest particle motion to fastest particle motion | solid, liquid, gas, plasma |
| A substance with a definite volume that takes the shape of its container is a — | Liquid |
| A substance that has a definite volume and definite shape is called a- | Solid |
| A substance that has no definite volume and takes the shape of its container is called a- | Gas |
| What is matter? | Anything that has mass and takes up space. |
| What happens to the movement of atoms in a substance as it gets warmer? | They move faster and spread out |
| How can you tell something is an element? | It is made of only one type of atom and is found on the periodic table. |
| What is a compound? | Two or more elements chemically combined |
| What is a mixture? | Two or more substances physically combined. |
| Properties that involve the ability of matter to react to other substances are __________ properties. | Chemical |
| Can elements be changed into simpler substances? | No |
| Phase change is an example of a __________ property | Physical |
| What is density? | The amount of matter in a given volume of a substance. |
| What is a heterogenous mixture? | A mixture where you can easily see the different pieces OR it separates if left sitting |
| What is a homogenous mixture? | A mixture where everything is evenly blended and you cannot see the individual parts |
| What are the two parts of a solution? | 1. Solute- the substance being dissolved 2. Solvent- the substance doing the dissolving |
| Why is gas compressible? | There is a lot of space between the atoms. |
| What color will litmus paper turn when dipped in an acid? | Red |
| What color will litmus paper turn when dipped in an acid? | blue |
| Acids taste __________, while bases taste __________. | Sour, bitter. |
| What do the numbers on the pH scale mean? | 1-6 acids 7 neutral 8-14 bases |
| What is a super saturated solution? | A solution in which no more solute will dissolve. |
| What is one way to get more solute to dissolve in a solvent? | Raise the temperature of the solvent |
| True or false: The density of a substance (like water) does not change when the volume changes. | True |
| What are the two parts of an atom? | The nucleus and the electron cloud |
| Where is the most volume of an atom located? | In the electron cloud |
| Where is the most mass of an atom located? | In the nucleus |
| What is the current model of the atom called? | The electron cloud model |
| What letter do most chemical formulas for acids start with? | H |
Created by:
smorrow801
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