Unit 2 Day 2

How many sig figs are there?
100.00

• 1
• 3
• 4
• 5

How many sig. fig. are in the number below:
106.00

• 2
• 3
• 4
• 5

How many sig figs?

70,000. m

• 5

• 4

• 3

• 2

• 1

Which number is correctly written in scientific notation?

• 5.67 x 10⁵
• 56.7 x 10³
• 0.567 x 10⁶

Solve. Round using SigFig math rules.
98.7°C - 97.25°C 

• 1°C
• 1.4°C
• 1.45°C
• 1.450°C

0.001 s + 9.234 s = ?

• 0.9234 s

• 9.235 s

• 9.24 s

• 10 s

Describe the accuracy and precision of the image

• Accurate and Precise
• Accurate and not precise
• Not Accurate and Precise
• not accurate and not precise

Solve the problem below, and choose the answer with the correct number of significant figures and the correct units.
10.0g/mL  x 5.0mL  =  ???

• 50g
• 50.0g
• 50.g
• 50g/mL

Solve the problem below, and choose the answer with the correct number of significant figures and the correct units.
28.00g  +  2.0g  =  ???

• 30g
• 30.0g
• 30.0
• 30.00g