“The Polarity that Water” a water molecule is join to four other water molecule by hydrogen bonds.

You are watching: Which statement must be mentioned in explaining why amphipathic molecules


a.two … polar covalentb.two … hydrogen—c.four … hydrogend.four … polar covalente.three … ionic

The unequal sharing of electrons within a water molecule provides the water molecule _____.

The electrons spend more time through the oxygen the the water molecule than v the hydrogens the water. Thus, the oxygen has actually a net negative charge and the hydrogens have a net confident charge.


a.have a low surface ar tensionb.change easily from a fluid to gas formc.ionicd.polar—e.hydrophobic
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C. Hydrogen Bonds are weaker than covalent bonds due to the fact that they do not involve share of electrons, and they are weaker than ionic bonds due to the fact that they involve the attraction of partial (not full) the opposite charges.
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a.The insect is swimming.b.The insect is paris just over the water c.surface.d.Surface tension.—e.The insect is really light.f.It is difficult to readjust the temperature that water.
a. Water molecules lure to every otherb. A autumn of water flood on a table creates a autumn on the table, rather than dispersing out end the surface
a. A water stride runs throughout a pond there is no breaking surfaceb. A sewing needle floats when it is inserted gently on top of water in a bucket
Carbonated cola is more acidic 보다 coffee or even orange juice due to the fact that cola has phosphoric acid.What is the molar concentration of in a cola that has a pH of 3.120?
(a) one mole of solute every liter that solution.—-(b) one mole of solute every liter that water.(c) a one-to-one ratio of solute to solvent molecules.Both (b) and (c).None of the above.
Which statement should be stated in explaining why amphipathic molecules heat up in ~ a water surface?
a.Nonpolar groups repel water.b.Polar groups tempt one another.—c.Polar groups repel water.d.Nonpolar groups lure one another.e.All of the above.
a.molecules breaking into ions.b.a separation that molecules into neutral atoms.c.breaking covalent bonds.d.a adjust from a solid come a liquid.e.a mingling of molecules and/or ions. —
Water is a resource of ______________ for chemical reactions in cells.Water is a resource of ______________ for chemical reactions in cells.Many reactions incorporate O and H from water into organic molecules. This happens as soon as you digest starch and protein, for example.
Which declare is true that water’s tensile strength?Which statement is true the water’s tensile strength?Because that hydrogen bonding, water coheres come itself and adheres to cabinet walls. That makes it feasible to pull water through plants there is no breaking the water column.
(a) It results from hydrogen bonding.(b) It helps to pull water through plants.(c) It involves both cohesion and adhesion.Both (a) and (b).(a), (b), and (c). —

Water has actually surface tension due to the fact that …

The hydrogen bonds in between surface water molecule are generally slightly stretched. Prefer a stretched sheet that rubber, the surface tends to contract and resists gift penetrated.


a. Water has tendency to evaporate native the surface.b.hydrogen bonds in between surface water molecules resist being stretched.c.cohesion forces are weaker at the surface.d.there is hopeful pressure inside the water mass.e.molecules at the surface make an ext hydrogen bonds.
Which that the adhering to helps many to explain why water has a high details heat?Which the the adhering to helps most to define why water has actually a high details heat?When you warmth water, lot of the warm is supplied to break hydrogen bonds. Just the continuing to be heat deserve to increase molecular motion, increasing the temperature.
(a) A water molecule can make 4 hydrogen bonds.—(b) The water molecule has exceptionally strong covalent bonds.(c) Water temperature is exceptionally sensitive to heat.Both (a) and (b).Both (b) and also (c).

Which aspect is crucial in make it possible to cool you yourself by sweating? Think carefully!

Random collisions enable some molecules to accumulate much more energy than other molecules. The weak of hydrogen bonds allows those molecules escape, leave the cooler molecule behind.


(a) molecule collide with varied angles and also speeds.(b) Hydrogen bonds are fairly weak.(c) Water has an ext energy in ~ the human body surface.Both (a) and (b).(a), (b), and (c).—

Though you include heat, the temperature of cook water remains constant because …

At boiling, all the included heat is used to rest hydrogen bonds. Cost-free of the water mass, the departing vapor carries away every the included energy, v none left end to raise the temperature.


a.It takes power to circulate water.b.Water has actually a consistent boiling temperature.c.It takes energy to rest covalent bonds.d.It takes power to break hydrogen bonds.—e.None the the above. The temperature rises during boiling.

Which statement helps to describe why ice is less dense than liquid water?

The ice lattice has open spaces since of the angle at i beg your pardon hydrogen bond form. Heat power can rest water molecules free of the lattice for this reason they move right into the openings.


(a) Water molecules make hydrogen bonds at identify angles.(b) Cold molecule move less than heat molecules.(c) Hydrogen bonds lengthen in the cold.All that the above.Both (a) and also (b). —
The open up spaces in water’s crystal structure make it possible for …The open spaces in water’s crystal framework make it possible for …
(a) aquatic life come exist in ~ the phibìc Pole.—(b) water to have a low boiling point.(c) life to happen in warm springs.Both (b) and also (c).(a), (b), and also (c).

Why doesn’t oil mix v water?

Water molecules cling to one another and also won’t part to make room because that uncharged (nonpolar) molecules. There’s no repulsion.


(a) Nonpolar molecule repel water molecules.(b) Polar molecules repel nonpolar molecules.(c) Polar molecules tempt one another.—(d) Nonpolar molecules tempt one another.Both (a) and (d).
Which residential or commercial property of water enables dogs come cool themselves by panting?Which residential property of water enables dogs to cool themselves by panting?Evaporative cooling takes place when molecules through the biggest kinetic energy leave a fluid as gas molecules. Because of water’s high heat of vaporization, a big amount of heat must be soaked up for 1 gram the water to be converted from fluid to gas. The dog loser this heat as the water on its tongue evaporates, enabling him to cool under by panting. To know why this price is correct, read about evaporative cooling.

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a.water’s high warm of vaporizationb.the formation of covalent bonds between water moleculesc.water’s high surface tension

Which residential or commercial property of water enables a paper towel to choose up a pond of water?

Water adheres come the cellulose molecule in a document towel, permitting the towel to pick up a puddle of water. This is similar to the adhesion between water molecules and cellulose in cell walls responsible because that water deliver in plants.


a.water’s high surface tensionb.water’s high warmth of vaporizationc.adhesion the water molecule to various other kinds the molecules—

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chapter 13- present Liabilities and also Contingencies
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