Chem 120 Week 5 Midterm Practice Problems-Solutions
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$20.00
| Institution | CHEM 120 Introduction to General, Organic, and Biological Chemistry with Lab |
| Contributor | Greenlee |
1. Question: Identify each of the following as a substance or a mixture.
2. Question: Which of the following mixtures are homogeneous and which are heterogeneous?
3. Question: Change the unit for each of the following measurements by replacing the power of ten with an appropriate SI prefix.
4. Question: Carry out the following conversions.
5. Question: How many millimeters are there in 1.00 cm? In 1.83 m?
6. Question: What is the density, in grams per milliliter, of (a) a salt solution if 37.5 mL has a mass
7. Question: What is the mass, in grams, of (a) 125 mL of castor oil, a laxative, which has a density
8. Question: What is the volume of (a) 227 g of hexane (in milliliters) and (b) a 454-g block of ice
9. Question: Convert 195 K to degrees Celsius.
10. Question: Acetylene, used for welding, contains 24.02 g of carbon for every 2.02 g of hydrogen.
11. Question: Use the periodic table to determine the number of protons in an atom of each of the following elements.
12. Question: Without referring to the periodic table, give the atomic numbers of the elements with the following electron configurations.
13. Question: Without referring to Table 4.2, supply a symbol given the name or a name given the symbol for each of the following ions:
14. Question: Write a formula to match the name or a name to match the formula of the following binary ionic compounds:
15. Question: Classify the following covalent bonds as polar or nonpolar.
| Instituition / Term | |
| Term | Fall 2020 |
| Institution | CHEM 120 Introduction to General, Organic, and Biological Chemistry with Lab |
| Contributor | Greenlee |
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-80x80.JPG "CHEM 120 Week 6 Discussion: Radiation - Radioisotope Tc-99m")
