“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
a.two … polar covalentb.two … hydrogen—c.four … hydrogend.four … polar covalente.three … ionic
The unequal share of electrons in ~ a water molecule makes the water molecule _____.
The electron spend much more time with the oxygen that the water molecule than with the hydrogens the water. Thus, the oxygen has a net an unfavorable charge and also the hydrogens have actually a net confident charge.
a.have a low surface ar tensionb.change easily from a fluid to gas formc.ionicd.polar—e.hydrophobic
C. Hydrogen Bonds space weaker 보다 covalent bonds due to the fact that they do not involve share of electrons, and also they are weaker than ionic bonds due to the fact that they show off the attraction that partial (not full) opposite charges.
a.The insect is swimming.b.The insect is paris just above the water c.surface.d.Surface tension.—e.The insect is really light.f.It is daunting to change the temperature the water.
a. Water molecules entice to each otherb. A drop of water flood on a table develops a autumn on the table, rather than spreading out over the surface
a. A water stride runs across a pond there is no breaking surfaceb. A sewing needle floats when it is placed gently on optimal of water in a bucket
Carbonated cola is an ext acidic 보다 coffee or also orange juice because cola contains phosphoric acid.What is the molar concentration of
(a) one mole of solute every liter the solution.—-(b) one mole of solute per liter the water.(c) a one-to-one ratio of solute to solvent molecules.Both (b) and (c).None the the above.
Which statement must be discussed in explaining why amphipathic molecules heat up in ~ a water surface?
a.Nonpolar groups repel water.b.Polar groups entice one another.—c.Polar teams repel water.d.Nonpolar groups entice one another.e.All of the above.
a.molecules breaking into ions.b.a separation that molecules right into neutral atoms.c.breaking covalent bonds.d.a readjust from a solid come a liquid.e.a mingling of molecule and/or ions. —
Water is a resource of ______________ because that chemical reaction in cells.Water is a source of ______________ because that chemical reactions in cells.Many reactions incorporate O and also H indigenous water into organic molecules. This happens once you digest starch and protein, because that example.
Which explain is true the water’s tensile strength?Which statement is true the water’s tensile strength?Because of hydrogen bonding, water coheres to itself and also adheres to cabinet walls. That makes it feasible to pull water v plants without breaking the water column.
(a) It results from hydrogen bonding.(b) It helps to traction water through plants.(c) It involves both cohesion and adhesion.Both (a) and (b).(a), (b), and (c). —
Water has actually surface tension since …
The hydrogen bonds in between surface water molecules are typically slightly stretched. Favor a stretched sheet of rubber, the surface ar tends come contract and resists gift penetrated.
a. Water has tendency to evaporate native the surface.b.hydrogen bonds in between surface water molecules stand up to being stretched.c.cohesion forces are weaker in ~ the surface.d.there is hopeful pressure within the water mass.e.molecules in ~ the surface make an ext hydrogen bonds.
Which the the adhering to helps many to explain why water has actually a high specific heat?Which the the following helps most to define why water has a high details heat?When you warm water, lot of the heat is provided to break hydrogen bonds. Only the remaining heat deserve to increase molecular motion, raising the temperature.
(a) A water molecule can make 4 hydrogen bonds.—(b) The water molecule has actually exceptionally strong covalent bonds.(c) Water temperature is exceptionally sensitive to heat.Both (a) and also (b).Both (b) and (c).
Which aspect is crucial in make it feasible to cool yourself by sweating? Think carefully!
Random collisions allow some molecules to accumulate an ext energy than various other molecules. The weakness of hydrogen bonds lets those molecule escape, leaving the cooler molecule behind.
(a) molecules collide through varied angles and speeds.(b) Hydrogen bond are relatively weak.(c) Water has an ext energy at the body surface.Both (a) and (b).(a), (b), and also (c).—
Though you add heat, the temperature of boil water remains consistent because …
At boiling, every the included heat is used to break hydrogen bonds. Complimentary of the water mass, the departing vapor carries away all the added energy, through none left over to advanced the temperature.
a.It takes power to circulate water.b.Water has actually a constant 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 cream is less thick than liquid water?
The ice lattice has open spaces due to the fact that of the angles at i m sorry hydrogen bonds form. Heat power can break water molecules free of the lattice so they move right into the openings.
(a) Water molecules do hydrogen bonds at identify angles.(b) Cold molecules move much less than warm molecules.(c) Hydrogen binding lengthen in the cold.All that the above.Both (a) and (b). —
The open up spaces in water’s crystal framework make it possible for …The open spaces in water’s crystal framework make it feasible for …
(a) aquatic life to exist at the phibìc Pole.—(b) water to have a low boiling point.(c) life to occur in hot springs.Both (b) and also (c).(a), (b), and (c).
Why doesn’t oil mix through water?
Water molecules cling to one another and won’t component to do room for uncharged (nonpolar) molecules. There’s no repulsion.
(a) Nonpolar molecule repel water molecules.(b) Polar molecule repel nonpolar molecules.(c) Polar molecules lure one another.—(d) Nonpolar molecules lure one another.Both (a) and also (d).
Which home of water permits dogs come cool us by panting?Which residential property of water enables dogs to cool us by panting?Evaporative cooling takes ar when molecules with the best kinetic power leave a liquid as gas molecules. Because of water’s high heat of vaporization, a big amount of heat must be absorbed for 1 gram the water come be converted from fluid to gas. The dog loser this warm as the water ~ above its tongue evaporates, allowing him come cool under by panting. To know why this answer is correct, read about evaporative cooling.
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a.water’s high heat of vaporizationb.the formation of covalent bonds in between water moleculesc.water’s high surface tension
Which property of water permits a file towel to pick up a pond of water?
Water adheres to the cellulose molecules in a document towel, enabling the bath towel to choose up a puddle of water. This is similar to the adhesion between water molecules and cellulose in cell wall surfaces responsible because that water move in plants.
a.water’s high surface ar tensionb.water’s high warm of vaporizationc.adhesion that water molecule to other kinds the molecules—
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