Homework Answers
Answer
False
Explanation.
Polar molecules have an uneven distribution of electrons that cause one end of the molecule to have a positive charge and the other to have a negative charge. This difference in electron distribution is due to characteristics of the individual atoms composing the molecule, such as size or electronegativity of the atom.
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Polar molecules have equal distribution of charge across the molecule True False
A molecule that contains a polar bond will always be polar. True False
A molecule that contains a polar bond will always be polar. True False
Which of the molecules in this exercise have polar bonds, but the molecule itself is non-polar?...
Which of the molecules in this exercise have polar bonds, but
the molecule itself is non-polar? What makes that molecule (s)
non-polar?
CH4 H20 H₂o+ HCI NH3 H2CO CI,O | Brož 5042 CO2 HCN Co CC14 C₂H6 Cog2 NO, soz | C₂H4 C2H2 N2H4 | CF₃C1 | CIO₃ CH2OH CF4
True or False: Dissolution of a compound involves the solvent molecules surrounding each individual molecule or...
True or False: Dissolution of a compound involves the solvent molecules surrounding each individual molecule or ion.
Is it possible for a molecule to have no polar bonds and a net dipole?
Is it possible for a molecule to have no polar bonds and a net dipole? Which of the molecules, if any, have no polar bonds and a net dipole?
Question 8 1 pts Molecules with more polar covalent bonds are more stable and have a...
Question 8 1 pts Molecules with more polar covalent bonds are more stable and have a lower potential energy than molecules with non polar covalent bonds. O True O False
True or False? If the sample size is equal to 40 and the true proportion is...
True or False? If the sample size is equal to 40 and the true proportion is equal to 0.25, then the z-distribution can be used instead of the binomial distribution for calculating probabilities. True or False? When sampling from a normal distribution where the mean= u and variance= o^2, then the sampling distribution for x will also have a mean= u and a variance= o^2
A hydrophilic molecule is likely to ____ a. Be non-polar b) Have no charge difference c)...
A hydrophilic molecule is likely to ____ a. Be non-polar b) Have no charge difference c) Dissolve in water easily d) Form colloid
A molecule which contains polar bonds will always have a net dipole moment greater than zero
A molecule which contains polar bonds will always have a net dipole moment greater than zero. True False
7). a). Is the acetone molecule non-polar or polar? Circle. Non-polar Polar b). Sketch pictures of...
7). a). Is the acetone molecule non-polar or polar? Circle. Non-polar Polar b). Sketch pictures of the intermolecular forces that would occur between the molecules of acetone and the molecules of 2- propanone if you have a mixture of the two liquids. What would be the main type of IMF that is responsible for the attraction? (Give a name for the IMF). c). The pentane molecule and the 2-pentanone molecule both have five carbon atoms on their structures. Why 2-pentanone...
1) Water is a polar molecule. There is an effective accumulation of negative charge near the...
1) Water is a polar molecule. There is an effective accumulation of negative charge near the oxygen atom and an effective lack of negative charge ( positive charge) near each of the hydrogen atoms. The molecule is triangular in shape, as diagramed below, with the angle near the oxygen vertex equal to 104.5°. d is the distance from each of the hydrogen atoms to the oxygen atom +Q 5225 52.25 -20 +Q Derive a formula for the electric field produced...
A molecule that contains a polar bond will always be polar. True False
Which of the molecules in this exercise have polar bonds, but
the molecule itself is non-polar? What makes that molecule (s)
non-polar?
CH4 H20 H₂o+ HCI NH3 H2CO CI,O | Brož 5042 CO2 HCN Co CC14 C₂H6 Cog2 NO, soz | C₂H4 C2H2 N2H4 | CF₃C1 | CIO₃ CH2OH CF4
Question 8 1 pts Molecules with more polar covalent bonds are more stable and have a lower potential energy than molecules with non polar covalent bonds. O True O False
7). a). Is the acetone molecule non-polar or polar? Circle. Non-polar Polar b). Sketch pictures of the intermolecular forces that would occur between the molecules of acetone and the molecules of 2- propanone if you have a mixture of the two liquids. What would be the main type of IMF that is responsible for the attraction? (Give a name for the IMF). c). The pentane molecule and the 2-pentanone molecule both have five carbon atoms on their structures. Why 2-pentanone...
1) Water is a polar molecule. There is an effective accumulation of negative charge near the oxygen atom and an effective lack of negative charge ( positive charge) near each of the hydrogen atoms. The molecule is triangular in shape, as diagramed below, with the angle near the oxygen vertex equal to 104.5°. d is the distance from each of the hydrogen atoms to the oxygen atom +Q 5225 52.25 -20 +Q Derive a formula for the electric field produced...
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