Chemistry Review: Math Skills and Lab Safety Essentials

What should you have ready before starting the session?

• A lab coat and safety goggles

• A laptop and internet connection

• Paper, reference tables, and a calculator

• A textbook and highlighter

Which unit is most appropriate for measuring the distance between two cities?

• Centimeters

• Meters

• Millimeters

• Kilometers

What is the best unit to measure the mass of a glass of water?

• Milligrams

• Liters

• Grams

• Kilograms

How is molarity defined according to the reference table?

• Moles of solute per liter of solution

• Grams of solute per liter of solution

• Grams of solute per milliliter of solution

• Moles of solute per milliliter of solution

Tags

NGSS.HS-PS1-5

When adding or subtracting numbers, the answer can only be as precise as which term?

• The most precise term

• The least precise term

• The term with the most significant figures

• The term with the fewest significant figures

What is the range for the coefficient in scientific notation?

• Greater than 10 and less than 100

• Greater than 0 and less than 1

• Greater than 1 and less than 10

• Greater than 0 and less than 10

When multiplying numbers in scientific notation, what do you do with the exponents?

• Add them

• Divide them

• Multiply them

• Subtract them

Which of the following is a correct conversion factor for converting kilometers to millimeters?

• 1 kilometer = 10^3 millimeters

• 1 kilometer = 10^6 millimeters

• 1 kilometer = 10^9 millimeters

• 1 kilometer = 10^12 millimeters

Which lab equipment is used to measure the volume of a liquid precisely?

• Bunsen burner

• Graduated cylinder

• Erlenmeyer flask

• Beaker

What should you do if an accident happens in the lab?

• Ignore it and continue working

• Try to fix it yourself

• Tell your teacher immediately

• Leave the lab