Chemistry Measurements

Which of the following is an example of a qualitative observation?

• 13.5°C

• 25kg

• Blue

• 17L

Which of the following is NOT an example of a quantitative observation?

• 13.5°C

• 25kg

• Heavy

• 17L

Which of the following is an example of a qualitative observation?

• 25kg

• 13.5°C

• Hot

• 17L

Which of the following is an example of a quantitative observation?

• Blue

• Light

• 17L

• Furry

Which measurement is NOT accurate for a 50g mass?

• 50.00g

• 49.99g

• 32.18g

• 50.01g

Which of the following is an example of an accurate measurement for a 50g mass?

• 32.18g

• 50.00g

• 45.00g

• 40.00g

Which of the following is an example of precise but not accurate measurements?

• 50.00g, 50.00g, 50.00g

• 50.00g, 49.99g, 50.00g

• 32.18g, 32.18g, 32.18g

• 50.00g, 50.01g, 50.02g

What does the term "accurate" refer to in measurements?

• How close multiple measurements are to each other

• How close a measurement is to the true value

• The ability to measure without error

• The range of possible measurements

Which term is associated with being "Correct"?

• Precision

• Accuracy

• Reproducibility

• Consistency

Which of the following is a correct example of scientific notation for the number 0.00453?

• 4.53 x 10^-3

• 0.453 x 10^-2

• 45.3 x 10^-4

• 0.0453 x 10^-1