CHEM20ASG2-1 - NAME _ CHEMISTRY 20 ASSIGNMENT 2-1 TOPIC(S)...

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NAME ________________________ CHEMISTRY 20 ASSIGNMENT 2-1 TOPIC(S) COVERED: Text (14-30) TOTAL MARKS: 32 DIRECTIONS: Read pages 14 to 30 in the text and answer the following questions on this paper. You must use only the information in the text to answer all questions. Complete sentences are not required. 1. Ninety-two naturally occurring elements combine to form the millions of different ______________________________ in nature. (1 mark) 2. ______________________ are metal compounds that are mined to produce metals, such as iron and copper. (1 mark) 3. For a compound to be solid, some type of ____________________________force must be holding the individual atoms together. (1 mark) 4. In nature, the noble gases are found as ______________________________ gases because they are uncombined. (1 mark) 5. The following patterns have emerged from these observations. (4 marks) • Metals are usually found in combination with non-metals, and these compounds are _________________________. • ____________________ (other than mercury) in pure form are solids. • ___________________________ can combine with one another to form gases, liquids, or solids. • The only elements that are never found in nature in a combined form are the __________________________ gases. 6.
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This note was uploaded on 04/09/2010 for the course CHEMISTRY 1AA3 taught by Professor Goneer during the Spring '08 term at McMaster University.

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CHEM20ASG2-1 - NAME _ CHEMISTRY 20 ASSIGNMENT 2-1 TOPIC(S)...

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