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Unformatted text preview: patino (mp25752) – Pre-lab 2 – Lyon – (53385) 1 This print-out should have 11 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 (part 1 of 2) 1.0 points Which property of sodium chloride will be used for its separation from silicon dioxide and calcium carbonate in the experimental procedure? 1. solubility in water correct 2. sodium chloride will not be separated from the other components in this experi- ment 3. greater density than water 4. reactivity with HCl Explanation: 002 (part 2 of 2) 1.0 points Is this a physical property or a chemical prop- erty? 1. It is both a physical property and a chem- ical property. 2. It is a chemical property because the chemical formula of NaCl changes during the process. 3. It is a physical property because it does not involve changing the chemical formula of NaCl. correct 4. It is a chemical property because chemi- cals don’t have physical properties. Explanation: 003 (part 1 of 2) 1.0 points Which property of calcium carbonate will be used for its separation from silicon dioxide in the experimental procedure? 1. larger particle size than silicon dioxide 2. reactivity with HCl correct 3. greater density than water 4. solubility in water Explanation: 004 (part 2 of 2) 1.0 points Is this a physical property or a chemical prop-...
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- Spring '09
- Sodium, Sodium chloride