Experiment 7.1 Worksheet Final.pdf - CHEM 111 Experiment 7...

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CHEM 111 Experiment 7 Part 1 Worksheet Complete before lab. Pre-lab concept questions. Read the Chemtrek background and watch the concept review videos to answer the following questions. 1. Explain the difference between a solution and a mixture, and give an example of each.
2. Using the solubility rules on page 7-5, determine whether the following molecules will be soluble or insoluble in water. a. Al(NO 3 ) 3 - Soluble c. MgS Insoluble b. (NH 4 ) 3 PO 4 - Soluble d. PbSO 4 Insoluble 3. Write the formula for the ionic compound that forms when the following ions combine. a. Ag + and SO 4 2 - Ag 2 SO 4 c. Ca 2+ and PO 4 3 - Ca 3 PO 4 b. Mg 2+ and O 2 - MgO d. Fe 3+ and NO
Chemical Reactions For questions 4-10, first write the balanced molecular equation and use the solubility rules to make a prediction about whether or not a precipitate will form. After completing predictions, watch the chemical reactions video and record your actual observations. It may be helpful to watch the reactions video in full-screen mode.

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