We finished the nomenclature section. Today's work is found in the text on p.105. We had a quiz on ionic nomenclature. Friday, we will have a quiz that includes all nomenclature. Unit test next Monday. Review questions are on the homework blog from Mon., Sept. 27. Review topics are in the document "review questions" on the unit 1 page of this site.
Homework - p.105 #24 and handout questions.
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Write names and formulas for acids and hydrated ionic compounds. The text reference is p.104, 223. Quiz tomorrow on nomenclature of ionic compounds. See the practice quiz document "practice ion nomen" on the unit 1 page of this site.
The unit test is on Monday. Review topics are listed in "review questions" document on the unit 1 page of this site. Homework: Finish the questions on the handout provided for nomenclature of acids and hydrates. We reviewed how to name and write formulas for ionic compounds. See p. 95-105 in the text, especially the table on p.98 and the language link in the margin.
Homework: Handout - see "ion nomen questions" document on unit 1 page of this site Review questions for next Monday's test: p.154-157 #6-9, 11, 15-24, 28-30 not looking at values for atomic radius, I.E., E.A - just trends, 31, 32, 39 no design, 40ab, 44, 45, 49, 52 If you have not completed all of your tests on your solid, then come at lunch on Monday to finish them. Start work on your lab report, which is due Tuesday.
Most students completed most of the tests on your solids. Begin to write your lab report. It is due on Tuesday.
You will have an experiment to do tomorrow, in which you will be given a white crystalline solid, and you will have to determine whether it is an ionic, polar, or non-polar compound, by doing at least 3 tests on it. Consider the properties of these compounds to decide which tests to do. You can test for odour, solubility in water and in alcohol, pH, conductivity in solution, and melting point. What will each of these tests tell you about the type of solid you have? You will not be able to do all of these tests in one period, so prioritize them to make sure you have enough information to tell what kind of solid you have.Your unit test will be Monday, October 4.
Homework: p.108 #21 There are two main types of compounds: ionic and molecular. Molecular compounds can have either polar molecules or non-polar molecules. The particles in each type of compound have different strengths of attraction, which we can use to explain a number of properties, such as boiling point, solubility in water, odour, and state at room temperature.
Homework: complete the Hazardous Materials Assignment Anticipation Guide, using the links on the unit 1 page of this website. You should be able to use electronegativities and shape to predict whether a molecule is polar or non-polar. For help, see p.88-91 in your text.
Homework: p.94 #1-4, 7 Particles can be attracted to each other by forces that cause them to clump together and become a solid. Ionic attraction is a strong force so ionic compounds are solids at room temperature. Molecular compounds have strong covalent bonds inside them, but they are attracted to other molecules by weaker intermolecular forces. Non-polar molecules are attracted by the weakest intermolecular forces, so they are often gases at room temperature. Polar molecules are attracted by the positive and negative ends of other polar molecules, so these are often liquids and solids at room temperature. Text reference is p.90-93. Homework: Answer p.74 #6, p.84 #6, p.94 #6. We did a molecular model-building activity. If you were absent today, download the model-building activity from the unit 1 page of the website, in order to complete the Lewis diagrams for the models you will be building. There is no other homework.
We had a quiz on the trends in the periodic table.
You should be able to predict the nature of a bond using electronegativity values of atoms. See text p.71-74, 85-86. Homework: record the properties of ionic and covalent compounds from p.67 answer p.84 #2-4, p.86 # 11-13 | AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesJanuary 2012 Categories |
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