Chemistry 09/14/2023

How many significant figures: 0.012 km

• 1
• 2
• 3
• 4

How many significant figures: 1000 mL

• 1
• 2
• 3
• 4

Calculate 12.34 + 1.234 + 0.1234 and give your answer with the correct number of significant figures.

• 13.6974
• 13.697
• 13.70
• 13.7

What is the result of 1345.567 divided by 23.56? (Use significant figures!)

• 57.11

• 58.11

• 56.75

• 83.49

What is mass?

• The amount of matter in something

• cm3

• The length x width

• Solid, liquids and gas

If the mass of an object is 750g and it's volume is 75cm3, what is it's density?

• 100cm

• 10cm3

• 100g

• 10g/cm3

What is the volume of Object X?

• 10.0 cm³
• 15.0 cm³
• 20.0 cm³
• 25.0 cm³

7,000 g = ____ kg

• 70

• 700

• 7

• 0.07

You know 1000 mg = 1 g.  Convert 2.5 grams into milligrams.

• 25 mg
• 25,000 mg
• 250 mg
• 2500 mg

Express the following in scientific notation:

.000457

• 457 x 10⁶

• 457 x 10^-6

• 4.57 x10⁴

• 4.57 x 10^-4