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Hannah's stack
Apologia Chemistry Module 1
| Question | Answer |
|---|---|
| What is Chemistry? | Chemistry is the study of matter. |
| What is Matter? | Anything that has mass and takes up space. |
| What is the system of standard units used universally? | The metric system. |
| What does Mass measure? | Mass measures how much matter exists in an object. |
| What does Weight measure? | Weight measures how hard gravity pulls on an object. |
| The English unit for mass = | The Slug. |
| The metric unit for weight = | The Newton |
| The metric unit for mass = | The Gram |
| The English unit for weight = | The Pound |
| The metric unit for distance = | The Meter |
| The English unit for distance = | The Foot |
| The metric unit for volume = | The Liter |
| The English unit for volume = | The Gallon |
| The English AND metric unit for time = | The Second |
| What is Volume? | Volume measures how much space an object occupies. |
| What does "milli" mean? (Numerically) | 0.001 |
| What does "centi" mean? (Numerically) | 0.01 |
| What does "kilo" mean? (Numerically) | 1,000 |
| 1 cubic centimeter is the same as how many milliliters? | 1 milliliter (1 cm cubed = 1 mL |
| What is a Graduated cylinder? | A hollow cylinder used to measure the volume of liquid. |
| What is Accuracy? | An indication of how close a measurement is to the true value. |
| What is Precision? | An indication of the scale on the measuring device that was used. |
| What are the 4 rules to determine the number of significant figures? | 1. All nonzero digits are significant. 2. All zeros in front of the first 1-9 are not significant. 3. All zeros between 2 significant numbers are significant. 4. All zeros at the end of a number AND to the right of the decimal point are significant. |
| What are the 2 rules for scientific notation? | 1. Place only 1 digit (not a zero) in front of the decimal point. 2. Only significant figures go in front of the multiplication sign. |
| Adding and subtracting with significant figures: | When adding and subtracting measurements, round your answer so that it has the same precision as the least precise measurement in the calculations. |
| Multiplying and dividing with significant figures: | When multiplying and dividing measurements, round the answer so that it has the same number of significant figures as the measurement with the fewest significant figures. |
| What is a Hypothesis? | An educated guess that attempts to explain some aspect of the world around us. |
| What is a Theory? | A hypothesis once it is confirmed by more rigorous experimentation. |
| What is a Scientific Law? | A theory once it has gone through numerous experiments. |
Created by:
HLup2nogood
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