Unit 1 Chemistry Test

How many significant figures are in the measurement 760 mmHg?

• 0

• 1

• 2

• 3

How many significant figures are in the measurement 0.0103 mL?

• 2

• 3

• 4

• 5

Measure the length of line using the ruler below. Make sure to include units in your answer.

Two lab groups measure the length of an unknown object four different times. Use their data to answer the following question.

What is the average length of Group A's data?

Two lab groups measure the length of an unknown object four different times. Use their data to answer the following question.

What is the average length of Group B's data?

Two lab groups measure the length of an unknown object four different times. Use their data to answer the following question.

Which group's data is more precise?

Two lab groups measure the length of an unknown object four different times. Use their data to answer the following question.

If the actual length of the object is 16.1 cm, which set of data is more accurate?

Two lab groups measure the length of an unknown object four different times. Use their data to answer the following question.

Convert the actual length to kilometers

Write the following number in scientific notation: 78,700,000,000

Write the following number in scientific notation: 0.0099