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Chemistry

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Rosemarie Mills

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3y ago
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Cards in this guide (10)
When baking soda is mixed with vinegar which type of reaction has taken place

its a chemical reaction

Solid metals undergo greater thermal expansion than liquids do

false

Swamp coolers are effective because

the water's latent heat of vaporization is being pulled from the air, the water pulls heat from the room to undergo a phase change.

Liquids usually have higher volume coefficients of expansion than solids do

true

A beach towel is laying on the sand in the sun Why does the sand feel hotter to touch than the towel

The sand has a higher conductivity.

On a cold winter day the flow of heat is from the outside in

Falseee

A horizontal line on a phase change graph indicates

A horizontal line on a phase change graph means there has been no change. Often longer periods of research are needed to see significant change.

What substance below requires the most energy to raise its temperature by 7 degrees C

gold

Is Sixty-five degrees Fahrenheit about 18 degrees Celsius

Yes, 18°C is 64.4°F, and 65°F is 18.33°C

On a very hot summer day, railroad tracks can buckle, causing train delays and derailments. Select the best reason below for the buckling

The metal undergoes thermal expansion.

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