Scientific Notation and Significant Figures

Question 1

What happens to the total mass of the chemicals involved in the reaction as the reaction proceeds?

Revolt · Accepted Answer

A: The mass decreases. After the reaction, the solution and gas have less mass than the baking soda and vinegar.; B: The mass increases. After the reaction, the solution and gas have more mass than the baking soda and vinegar.; C: The mass is the same. After the reaction, the solution and gas have the same mass as the baking soda and vinegar.

Question 2

Which of the following best describes your choice?

Revolt · Accepted Answer

A: It’s my best explanation for now, but I really would have to test my idea to be sure.; B: It's a well-tested explanation for a large number of observations.; C: It's a well-tested description of what happens, but it doesn't explain why it happens.

Scientific Notation and Significant Figures Answers

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