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Chemistry, 28.06.2019 09:00 Samuelgamboe

1.) which of the following is an example of using creativity while doing background research? a. organizing data in tables b. validating results by repetition c. drawing a conclusion d. writing a hypothesis 2.) the gas carbon dioxide is a pure substance. which of the following is true about carbon dioxide? a. carbon and oxygen are chemically bonded in it. b. carbon and oxygen retain their original identity in it. c. it can be separated into carbon and oxygen using physical methods. d. the proportion of carbon and oxygen is different in different samples of the gas. 3.) which of the following is a property of a mixture? a. it consists of a single element or compound. b. components that are mixed can be in different states of matter. c. it is very difficult to separate the components. d. the proportion of the particles that make it up cannot be altered.

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