Water molecules are

Group of answer choices

polar

nonpolar

ionic

none of the above

Flag this QuestionQuestion 22 pts

In water, hydrogen of one molecule is held to the oxygen of a second by what type of bond?

Group of answer choices

polar covalent

hydrogen

Ionic

none of the above

Flag this QuestionQuestion 32 pts

A certain lizard can walk across water without drowning. This is due to what property of water?

Group of answer choices

Adhesion

Cohesion

surface tension

specific heat

Flag this QuestionQuestion 42.5 pts

Water has a high specific heat. This means that water…

Group of answer choices

can absorb a great deal of energy without a change in temperature

changes temperature rapidly with increasing heat

loses heat easily when temperature drops

is not a good temperature regulator for the body

Flag this QuestionQuestion 52.5 pts

Which of the following is true about water….

Group of answer choices

it is a good solvent

it is hydrophobic

it is NOT cohesive

all of the above

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The material that gets dissolved (like sugar in coffee) is…

Group of answer choices

Solution

solvent

solute

sol

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An atom that wants to hold on to or attract electrons is

Group of answer choices

Electropositive

Polar

electronegative

Non-polar

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Hydrogen bonds are

Group of answer choices

Intramolecular bond

Ionic bond

Covalent bond

Intermolecular bond

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Dew is an example of _____.

Group of answer choices

Cohesion

Adhesion

Surface Tension

Specific Heat

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The reason water does not warm quickly under the sun’s heat

Group of answer choices

Cohesion

Adhesion

Surface Tension

Specific Heat

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Hydrogen bonds are responsible for

Group of answer choices

ice floating

water pollution

purity of bottled water

none of the above

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When electrons are shared equally between 2 atoms we have

Group of answer choices

ionic bond

polar covalent bond

nonpolar covalent bond

polar ionic bond

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Which of the following allows a lizard to walk on water?

Group of answer choices

adhesion

surface tension

cohesion

specific heat

Flag this QuestionQuestion 142 pts

Which of the following is the electronegative atom in water?

Group of answer choices

carbon

oxygen

Hydrogen

Potassium

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Which of the following is a positively charged ion

Group of answer choices

Proton

Anion

Electron

cation

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Ice is

Group of answer choices

Less dense than liquid water

More dense than liquid water

The same density as liquid water

Density depends on calories

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Which of the following will not make a solution with water

Group of answer choices

oil

Salt

Sugar

Tea

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If I have 5 g of sugar in 100 g of water what is the concentration of the solution?

Group of answer choices

5 ppm

5 ppb

5 molar

5 percent

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The more electronegative atoms are found

Group of answer choices

On the left side of the periodic chart (for example Li, K)

On the right side of the periodic chart (for example O, N)

In the middle of the periodic chart (for example Fe, Hg)

All over the periodic chart

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In a covalent bond

Group of answer choices

electrons are shared

Electrons move from one atom to another

Atoms become ions

None of the above

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When water dissolve NaCl, the partially positive H atoms surround

Group of answer choices

The Cl ion

The Na ion

The entire molecule

None of the above

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An aqueous solution

Group of answer choices

Has water as the solute

Has water as the solvent

Has water as the solution

Has ethanol as the solvent

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Lead is sometimes a contaminant in water, this very low concentration is best reported as

Group of answer choices

Molarity

Percent

PPM (parts per million)

None of the above

Flag this QuestionQuestion 242 pts

Which of the following is the most electronegative atom?

Group of answer choices

O

H

Li

Ca

Flag this QuestionQuestion 252 pts

The amount of energy required to increase the temperature of 1 gram of water by 1 degree Centegrade

Group of answer choices

calorie

Density

Molarity

Polarity

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Forces that hold one atom to another to form a compound

Group of answer choices

Hydrogen bond

Intermolecular bond

Intramolecular bond

None of the above

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Sugar can dissolve in water

Group of answer choices

True

False

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Turpentine is a solvent for oil based paint

Group of answer choices

True

False

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The percent composition of a solution is grams of solvent per 100 g of solute

Group of answer choices

True

False

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Moles per liter is called molarity

Group of answer choices

True

False

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Adhesion is when water molecules stick to some other surface.

Group of answer choices

True

False

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Water has a high surface tension.

Group of answer choices

True

False

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Electronegative atoms do not attract electrons

Group of answer choices

True

False

Flag this QuestionQuestion 342 pts

As water cools it expands

Group of answer choices

True

False

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Orange Juice is an example of a solution.

Group of answer choices

True

False

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Insoluble means that a material will NOT dissolve in water

Group of answer choices

True

False

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Electrolytes are non-conducting solutes in an aqueous solution

Group of answer choices

True

False

Flag this QuestionQuestion 382 pts

A 15% solution of sugar is 15 g of sugar in a liter of water.

Group of answer choices

True

False