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Biblioteka

Water and the Properties of Water cloned 12/1/2020

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Posljednje ažuriranje over 5 years ago
2 questions
1
1
Pitanje 1
1.

Match the term to the correct definition

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

solvent

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A combination of two or more substances that are NOT chemically combined

solution

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a pure substance made of only one kind of atom and cannot be broken down

Polarity (polar)

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Anything that has mass and takes up space

mixture

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A substance that is made of two or more elements that are chemically combined

atom

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the smallest unit of most compounds

molecule

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The part of a solution that does the dissolving

matter

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the part of a solution that is being dissolved

compound

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A mixture that forms when one substance dissolves another

solute

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The smallest part of an element

element

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means that the overall charge of a molecule is neutral even though opposite ends of the molecule have small opposite charges

Pitanje 2
2.

Match the term to the correct definition.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

slightly positive

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the amount of heat needed to raise the temperature of 1 Kg of a substance 1degree Celcius

capillary action

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the force of attraction between water molecules and other water molecules

universal solvent

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a property of water that exists because ice is less dense than liquid water

slightly negative

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tightness across the surface of water.

surface tension

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the force of attraction between water molecules and other substances like glass.

adhesion

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the property of water that is due to the combined force of attraction - both cohesion and adhesion. (how water enters roots of a plant)

Heat capacity or specific heat

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water is often called this because it dissolves so many substances.

cohesion

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the bond created between water molecules

Ice floats

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the oxygen end of a water molecule

hydrogen bond

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the hydrogen end of a water molecule