1. For which of the following activities might you want to hire a chemist?A. testing a sample of water from a well
2. Which of the following procedures involves a physical change in one of the substances?
D. grinding chalk into a fine powder
3. You have three molecules of glucose (3C6H12O6). How many oxygen atoms do you have?
C. 6
The answer is letter C.) <span>There can be alternate explanations for the same evidence.
The results of the two researchers may have been the same, but the interpretation of the data is significantly different. Their conclusions can be </span><span>further </span>supported by gathering more results from different experiments.
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The statement that best describes the Americans who served in the Vietnam war was most of the US soldiers were all young, working class volunteers. The correct answer is D.