Acap Physical Science Review Practice

Chemical X has a mass of 20 grams, and chemical Y has a mass of 30 grams. If the two chemicals are mixed and a complete chemical reaction takes place, what is most likely the mass of the product?

• 20 grams

• 30 grams

• 50 grams

• 100 grams

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How can a scientist, using the periodic table, find an element with properties similar to another element?

• By comparing density

• By finding its periodic group

• By comparing malleability

• By comparing atomic weight

The element silicon is best used for which purpose?

• As a container to keep coffee hot

• As a semiconductor in computer chips

• As a material to make airplane frames

• As a malleable material for coins and jewelry

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Silicon (Si) is a semiconductor, because it is a

• metal

• nonmetal

• metalloid

Which is an example of a physical change?

• boiling

• rotting

• burning

• rusting

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All changes in states of matter (boiling, melting, evaporation) are

• chemical changes

• physical changes

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After a chemical reaction occurs in an open test tube, measurements indicate that the mass of the reactants is greater than the mass of the products remaining in the test tube. What most likely explains the measurements?

• A solid was produced.

• A gas was produced.

• The salinity of the reactants was high.

• The temperature of the reactants was low.

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What is a PUSH or PULL of an object?

• Motion

• Force

• Friction

• Gravity

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An object may move when a _______ is applied to it. 

• force

• gravity

• friction

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When you're bowling and get a strike the bowing ball puts __________ on the pins. 

• insulators

• electricity

• force

• thermal

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