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Matter & Energy
Studying Matter and Energy
| Question | Answer |
|---|---|
| What is chemistry the study of? | Matter and energy |
| What is matter? | Anything that has mass and takes up space |
| Which is NOT a state of matter: solid, liquid, gas, energy? | Energy |
| Which is NOT a type of energy: kinetic, liquid, potential, chemical? | Liquid |
| The Law of Conservation of Matter states that matter: | Cannot be created or destroyed |
| How is energy related to temperature? | Directly |
| Reactions that give off heat. | Exothermic reactions |
| An amorphous solid is a(n): | Solid that flows |
| Viscosity is a measurement of: | The "thickness" of a liquid |
| As you climb a mountain, what happens to air pressure? | It decreases |
| Gas molecules move... | Rapidly and randomly |
| Which type of property can be observed without changing the substance? | Physical |
| What type of change (generally) cannot be reversed? | Chemical |
| When writing a chemical reaction, what does the arrow point towards? | Products |
| A substance that cannot be separated into simpler substances by any means is a(n): | Element |
| A substance that contains 2 or more elements combined in fixed proportions is a(n): | Compound |
| A blend of 2 or more pure substances is a(n): | Mixture |
| A mixture in which you can see the different parts is called a(n): | Heterogeneous mixutre |
| Which type of matter can be separated physically through filtration? | Heterogeneous mixture |
| A mixture that appears uniform is called a(n): | Homogeneous mixture |
| Which type of matter can only be separated by a chemical reaction? | Compound |
| What happens to temperature as ice melts? | It stays the same |
| What is the "triple point"? | Solid, liquid & gas all exist |
| What instrument is used to measure length? | Ruler |
| What instrument/method is NOT used to measure volume: graduated cylinder, ruler, liquid displacement, or balance? | Balance |
| Which is NOT a unit of volume: mL, g, cm3, or L? | Gram (g) |
| What two variables are used to find density? | Mass and volume |
| If an object has a density greater than one, what will happen in water? | It will sink |
| How close a measurement is to the actual value is: | Accuracy |
| How close measurements are to each other is: | Precision |
| In significant figures, trailing zeros: | Count with a decimal present |
| In significant figures, leading zeros: | Never count |
| In significant figures, captive zeros: | Always count |
| In significant figures, non-zero numbers; | Always count |
| The title of a graph should be: | Independent vs. Dependent |
| The x-axis is the: | Independent Variable |
| When both variables increase, it represents a(n): | Direct relationshop |
| When adding numbers, the significant figures included in the answer are determined by: | Least total decimal places in the problem |
| When multiplying numbers, total significant figures in the answer is determined by: | Least total significant figures in the problem |
| How do you know a chemical change has taken place? | New substances are formed |
Created by:
hansenc1
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