1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nikitadnepr [17]
3 years ago
7

When determining molecular polarity, which scenario is not possible:

Chemistry
2 answers:
Fynjy0 [20]3 years ago
6 0

Answer: Option C is correct

A polar molecule with nonpolar bonds

Explanation:

A polar molecule with nonpolar bonds cannot be polar because a polar molecule has net dipole that it has one end slightly positive and the other end slightly negative which allows the distribution of atoms .

Therefore it cannot have non polar bonds because non polar bonds allow electrons to be shared equally and it take place between non elemental substances or substances that are not elements , it cannot occur in elemental substances because these substances have different electronegativities which can be held by polar bonds alone.

defon3 years ago
3 0

Answer:

The correct answer is <em>C. A polar molecule with nonpolar bonds</em>

Explanation:

Polarity is the property of a molecule of having a dipole moment. Based on this, a molecule can be polar -with dipole moment- o nonpolar. The polarity of a molecule is determined by:

- the presence of elements with differences in electronegativity which results in <em>polar bonds.</em>

- geometry of the molecule

Polar bonds are vectors and if they are opposite (equal in magnitude with opposite direction) so they are cancelled out. A polar molecule must have polar bonds, buy they can be cancelled out by opposite positions in the molecule geometry. For example, CO₂ (carbon dioxide) has polar bonds C-O because they are composed by elements with different electronegativities, but the molecule is linear so the two bonds C-O are cancelled out and the molecule is nonpolar.

Therefore, from the options, the only non possible scenario is C - a polar molecule with nonpolar bonds - because polar molecules always have polar bonds. The opposite situation can be true: a non polar molecule wiith polar bonds as we saw in the example of CO₂.

You might be interested in
Sulfur is composed of three isotopes: 32S, 33S, and 34S. The atomic masses of these isotopes are given below. 32S: 31.97207 amu
elena-14-01-66 [18.8K]

Answer:

Abundance of 32S is 94.41%

Explanation:

The average atomic mass is defined as the sum of the atomic masses of each isotope times its abundance:

Average atomic mass = ∑ Atomic mass istope*Abundance

For the sulfur:

32.07amu = 31.97207X + 32.97146Y + 33.96786*0.0422 <em>(1)</em>

<em>Where X is abundance of 32S and Y abundance of 33S</em>

Also we can write:

1 = X + Y + 0.0422 <em>(2)</em>

0.9578 - X = Y

Because the sum of the abundances = 1

Replacing (2) in (1):

32.07amu = 31.97207X + 32.97146(0.9578 - X) + 33.96786*0.0422

32.07 = 31.97207X + 31.58006 - 32.97146X + 1.43344

-0.9435 = -0.99939X

0.9441  =X

In percentage, abundance of 32S is 94.41%

3 0
3 years ago
The density of an object has the equation . If an object has a mass of 85 g and a volume of 92 cm3, what is its density?
Pani-rosa [81]

Answer:

Explanation:

density = mass / volume = 85 / 92 = 0.92 g/cm3

5 0
4 years ago
How can you tell from the name the types of bonds present in a hydrocarbon?
Darya [45]

Answer:

Alkane

Alkene

Alkyne

Explanation:

Alkane=1 bond (Saturated hydrocarbon)

Alkene= 2 bonds (Unsaturated hydrocarbon)

Alkyne= triple bonds (Unsaturated hydrocarbon)

Formula of Alkane = CnH2n+2

Formula of Alkene = CnH2n

Formula of Alkyne = CnH2n-2

7 0
3 years ago
Answer has to be in two significant figures
nadezda [96]

Answer: 2.186 m

Explanation:

formula for molality: (mol solute)/(kg solvent)

Na2CO3 = solute

510g Na2CO3 * ( 1 mol / 106 g) = 4.811 mol solute

ethylene glycol = solvent

2.2 * 10^3 g * ( 1 kg / 1000 g) = 2.2 kg

(4.811/2.2) = 2.186

5 0
3 years ago
What happens in a stationary front?
lions [1.4K]

Answer:

c a cold air mass and a warm air mass meet with neither moving

4 0
3 years ago
Other questions:
  • What happens to the gas particles when the jar is heated?
    8·1 answer
  •   Potentially hazardous foods on their way for delivery to your establishment must be kept at what temperature
    5·2 answers
  • This is a group 2 element that is called the alkaline earth metals. It burns with a very bright light
    11·1 answer
  • The height of a sound wave is called its _____
    12·1 answer
  • What is the molarity of a solution that is prepared by adding 57.1 g of toluene (c 7 ​ h 8 ​ ) (density = 0.867 g/ml) to a 250 m
    13·1 answer
  • Please help me with this question!<br> question number 2 only! PLEASE!!!
    13·1 answer
  • Please help! Look at the picture for the question
    12·1 answer
  • Consider the following three-step representation of a reaction mechanism.
    9·2 answers
  • Which details from “When Volcanoes Erupt” would be important to include in a summary of the text? Select three details.
    8·2 answers
  • On her way to school Tuesday morning, Ana got soaking wet during a surprise rainstorm. She was not carrying an umbrella or rain
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!