Introduction to Chemistry

This picture represents which of the following?

• element

• compound

• mixture

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NGSS.MS-PS1-1

Italian Salad Dressing is a . . .

• heterogeneous mixture

• homogeneous mixture

• Pure Substance

• Compound

If you change a substance into a new substance...

• Partial Change

• Physical Change

• Chemical Change

• Freezing

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NGSS.MS-PS1-2

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Changing the phase, size or shape of something....

• Chemical change

• Physical Change

• Suspension

• Colloid

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NGSS.MS-PS1-4

Which is NOT a chemical change?

• Leaves changing colors in the fall

• Iron rusting

• Digesting Lunch

• Ice Melting

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NGSS.MS-PS1-2

NGSS.MS-PS1-4

The temperature at which a SOLID becomes a LIQUID.

• melting point

• freezing point

• viscosity

• solubility

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NGSS.MS-PS1-4

Properties that can be observed directly or measured without changing the chemical identity of the substance.

• chemical properties

• soluable properties

• density properties

• physical properties

In a Solution, what is doing the dissolving?

• solvent

• solute

• solution

• temperature

Which of the following is an example of a physical property?

• mass

• shape

• luster

• all of these are physical properties

A measure of how well a solute dissolves in a solvent.

• solubility

• evaporation

• viscosity

• density