Unit Analysis in Chemistry

What is the primary goal of learning unit analysis in chemistry?

• To understand chemical reactions

• To calculate molecular weights

• To memorize unit conversions

• To develop a way of thinking for solving problems

When adding units, what must be true for the units to be combined?

• They must be like terms

• They must be in different dimensions

• They must be in the same measurement system

• They must be in the same equation

How are units treated when multiplying them in a problem?

• They are multiplied like variables or numbers

• They are added together

• They are subtracted

• They are ignored

What is a conversion factor?

• A ratio used to convert one unit to another

• A measurement tool

• A constant used in chemical reactions

• A variable in algebra

Which of the following is a correct conversion factor?

• 1 pound = 100 grams

• 1 liter = 2 gallons

• 1 foot = 12 inches

• 1 meter = 100 inches

What does 'this per that' refer to in unit analysis?

• A method of dividing units

• A way to compare two quantities

• A technique for adding units

• A process for subtracting units

Which of the following is an example of a 'this per that' ratio?

• 1 dollar per 4 quarters

• 1 inch = 2.54 cm

• 1 mile = 5,280 feet

• 1 liter = 1.06 quarts

What is the conversion factor for inches to centimeters?

• 1 inch = 2 cm

• 1 inch = 2.5 cm

• 1 inch = 2.54 cm

• 1 inch = 3 cm

How many quarters are there in $4.5?

• 184

• 20

• 18

• 16

Where can you find more resources on unit analysis?

• In a math workbook

• In a chemistry textbook

• On Mr. CY's website

• At the local library