CHEM 120 Week 3 Exam 1
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$20.00
| Institution | Chamberlain |
| Contributor | Jose Linares |
Answer the following questions (1 point each) to add up to 5 points back to your exam score.
- Question: Choose any isotope of an element and answer the following
- Write the isotopic formula
- How many neutrons in the isotope?
- How many protons are in the isotope?
- How many electrons are in the isotope?
- What is the mass number for the isotope?
- Question: Choose any molecular compound with 3 to 5 atoms in it.
- Draw the Lewis structure.
- Give step by step directions for how to draw the Lewis Structure.
- Give the molecular shape
- Give an explanation for how you determined the shape
- Is your molecule polar or nonpolar
- Question: Explain what hydrogen bonding is.
- Give an example of a molecule that would hydrogen bond
- Explain how hydrogen bonding affects physical properties like boiling point.
- Question: Explain the difference between ionic and molecular (covalent) bonding. Make sure you include what happens with the electrons.
- Give an example of an ionic compound, give the correct formula and correct name. Explain how you determined the name of the compound from the formula
- Give an example of a molecular compound, give the correct formula and correct name. Explain how your determined the name from the formula.
- Question: Explain what a negative control is in an experiment.
- Give an example of an experiment and the negative control
- Identify the independent and dependent variables
| Instituition / Term | |
| Term | Summer |
| Institution | Chamberlain |
| Contributor | Jose Linares |
-80x80.JPG "CHEM 120 Week 2 Discussion; Atomic Structure")
-80x80.JPG "CHEM 120 Week 6 Discussion: Radiation - Radioisotope Tc-99m")
