Answers by Bill Weiner
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Answers by Bill Weiner

Answers by Bill Weiner
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A change in the properties of matter that does not change the identity of the substance is a chemical change a physical change an ionic change a covalent change
answered Jun 27, 2018
3 votes
226k views
Which geographic features had the most significant positive influence on settlement patterns and economic development in the British North American colonies
answered May 6, 2018
5 votes
11.9k views
Which United States senator claimed to have a list of known Communists who worked for the State Department? A) Joseph McCarthy B) Hubert Humphrey C) Eugene McCarthy D) Edmund Muskie
answered Jan 12, 2018
3 votes
22.0k views
Ed is doing a survey of popular colors for cars for a school report. He decides to take a sample by sitting near a busy intersection and noting the colors of the cars as they go by him. Ed counts 23 black
answered May 14, 2017
5 votes
71.3k views
Write the following measurements in longform: 1. 4.5x30 g 2. 1.99x10-8 cm
answered Oct 24, 2015
6 votes
167k views
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