HW1answers pg3 - 014 (part 1 of 1) 10 points What is the...

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011 (part 1 of 1) 10 points Water is an example of 1. None of these 2. a compound. correct 3. an element. 4. a homogeneous mixture. 5. a heterogeneous mixture. Explanation: The two hydrogen atoms and one oxygen atom making water exempliFes two or more atoms bonded together to make a molecule. 012 (part 1 of 1) 10 points Which of the following substances is NOT an element? 1. gold 2. mercury 3. carbon monoxide correct 4. arsenic Explanation: Carbon monoxide (CO) is not an element; it is a compound. It is made up of two elements. 013 (part 1 of 1) 10 points What is the element symbolized by Si? 1. silicon correct 2. sodium 3. silver 4. sulfur Explanation: The symbol for silicon is Si.
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Unformatted text preview: 014 (part 1 of 1) 10 points What is the symbol for the element lead? 1. Ld 2. Le 3. La 4. Pb correct Explanation: The symbol for lead is Pb. 015 (part 1 of 1) 10 points The measurement 3 . 2 × 10-3 g could also be written as 1. 3.2 mg. correct 2. 3.2 kg. 3. 3.2 pg. 4. 3.2 g. 5. None of these Explanation: mg refers to 10-3 . 016 (part 1 of 1) 10 points A pipe drips at 155 mL/min. Express this is units of gallons/day. 1. 2.34 gal/day 2. 0.223 gal/day 3. 15.7 gal/day 4. 223 gal/day 5. 58.9 gal/day correct 6. 377 gal/day 7. 942 gal/day Explanation:...
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This note was uploaded on 01/23/2011 for the course CH 301 taught by Professor Fakhreddine/lyon during the Spring '07 term at University of Texas.

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