3.5 Mixtures and Solutions

3.5 Mixtures and Solutions

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Multiple Choice

Gold is an element. All the atoms in gold are the same size and have the same properties?

• True

• False

Multiple Choice

All ____________ are made up of two or more atoms bonded together.

• atoms

• molecules

• electrons

• elements

Multiple Choice

An element is a pure substance made of only one type of atom. That means the element Carbon is only made of carbon atoms.

• True

• False

Multiple Select

Check all that are true statements

• elements contain one type of atom while compounds are made up of different types of atoms

• neither elements nor compounds are made of atoms

• both elements and compounds are pure substances

Multiple Choice

Mixtures are made by combining either elements or compounds or both

• true

• false

Multiple Select

Which of the following are examples of heterogeneous mixtures. (unevenly mixed) (Check all that apply)

• salad

• chocolate chip cookies

• cereal in milk

• a bowl of M & M/s with different colors

• pizza with different toppings

Multiple Choice

Salt water (dissolved) and metal alloys are homogeneous mixtures because they are evenly mixed throughout.

• True

• False

Multiple Choice

Why is air a homogeneous mixture?

• It depends on the temperature

• It's mixed so well you can't tell that it contains more than one gas in the mixture

• It contains different amounts of water vapor. and birds fly in the air.

Multiple Choice

If a spoonful of sugar is mixed in a glass of water, what is the water called?

• solute

• solvent

• solution

• element

Multiple Choice

the substance that dissolves

• solvent

• solute

• solution

• unsaturated

Multiple Choice

substance that dissolves the solute

• solution

• saturation

• solvent

Multiple Choice

In the video, which substance is being broken apart or dissolved?

• NaCl (salt)- represented by brown and green spheres)

• H2O (water)- represented by red and gray spheres

Multiple Choice

The ability to dissolve in a solvent

• solute

• pure substance

• solubility

Multiple Select

Which of the following affect the rate that a solute can dissolve into a solvent? Check all that apply.

• size of the solute

• rate of stirring

• temperature of the solvent

Multiple Select

Which substances or objects are insoluble in room temperature water? check all that apply

• sand

• metal

• wood

• oil

Multiple Choice

Italian dressing is a

• suspension

• element

• compound

Poll

How do you feel about what you have learned in this lesson?

• 😊 Great! I am confident that I understand the material.

• 🙂 Good, but I still have a question. I will ask the teacher about it by email or in class.

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• 🤨 I need help. I will review the lesson and make a list of topics that are confusing to me. I will reach out to the teacher for help.