SCI 230 - MS-PS1-2: Chemical Properties of Matter (Q - BANK)

What do chemical properties of matter describe?

• The ways a substance reacts with another substance

• The physical appearance of a substance

• The temperature at which a substance melts

• The density of a substance

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NGSS.MS-PS1-2

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Why is it important for scientists to know the chemical properties of substances in a lab?

• To prevent harm to lab equipment and people

• To make the lab look more organized

• To increase the temperature of reactions

• To decrease the cost of experiments

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NGSS.MS-PS1-2

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NGSS.MS-PS1-1

What might happen if pure potassium is mixed with water?

• A violent explosion

• Nothing will happen

• The water will freeze

• The potassium will dissolve

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NGSS.MS-PS1-2

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Chemical properties describe the way a substance ​ (a)   .

• reacts with another substance
• changes color
• melts at high temperatures
• evaporates quickly

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NGSS.MS-PS1-2

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Gene is a fifth grader. He found some unmarked bottles under his bathroom sink. He wants to find out what they are.

Should he mix them together?

• 
  yes, because mixing unknown substances is very safe

• yes, because mixing unknown substances can help him figure out what the bottles contain

• no, because mixing unknown substances could be very dangerous

• no, because Gene does not know how to mix the substances safely

Answer explanation

Gene should not mix the unknown substances together. They could create a harmful reaction that could start a fire, make Gene sick, or create another dangerous situation.

What are two kinds of chemical properties mentioned in the passage?

• Flammability and corrosion

• Flammability and melting

• Corrosion and freezing

• Melting and freezing

Which elements are mentioned as highly flammable in the passage?

• Hydrogen and cesium

• Oxygen and nitrogen

• Iron and copper

• Gold and silver

What happens to steel when it is exposed to water and oxygen according to the passage?

• It rusts

• It melts

• It evaporates

• It freezes

Which of the following aWhich of the following are chemical properties?

• flammability

• corrosion

• volume

• density

Answer explanation

Flammability and corrosion are chemical properties because substances must react with each other for them to occur. Density and volume are both physical properties.

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NGSS.MS-PS1-2

Both of these images are examples of chemical properties. Which example shows flammability?

• the burning wood

• the rusting bridge

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