CHEM 28: Phases of matter

CHEM 28: Phase change

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Poll

Who is your favorite scientist?

Multiple Choice

Sucrose, a type of sugar, is dissolved in hot water. In this mixture, what type best describes sucrose?

• Solvent

• Solute

• Solution

• Mixture

Multiple Choice

Which of these examples is a heterogeneous mixture?

Multiple Choice

If Fe = iron and male = man. What is a Female?

Multiple Choice

Sodium hydroxide is a chemical that's used to unclog the sink. Sodium hydroxide is very corrosive. Which GHS symbol would you give to a jar full of sodium hydroxide?

Multiple Choice

What is the SI base unit for mass?

• Slug

• Gram

• Kilogram

• Ounce

The SI base unit for mass is kilogram

The kilogram is used more often, so it made sense for scientists in the sixties to choose the kilogram as the SI base unit, and not the gram.

Ounce is not an SI unit.