What Do I Need to Know For the Chem 121 Final Exam?
Chapter 1 1. Define: matter, physical property, physical change, chemical property, chemical change, solid, liquid, gas, kinetic energy, potential energy. 2. State, use, and explain the steps in the scientific method – observation, natural law, hypothesis, experiment, theory. 3. Use conversion factors to solve certain problems. 4. Convert among basic units in the metric system – meter, millimeter, kilometer, gram, kilogram, milliliter, and liter. 5. Convert among basic units in the common system used in the USA – fluid ounce, pint, quart, gallon, inch, foot, yard, mile, weight ounce, pound, and ton. 6. Convert between common units and metric units: 1.00 pound = 454 grams 1.00 inch = 2.54 cm 1.00 liter = 1.06 quarts 7. Calculate density and use it to solve problems. Water’s density is 1 g/mL. 8. Convert temperatures from Celsius to Fahrenheit to Kelvin. 9. Determine the number of significant digits in a measured number. Know that counted and defined numbers are exact. 10. Round the answ
