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
Talja [164]
3 years ago
14

Which of the following statements concerning the attraction of ions to polar molecules is/are CORRECT? 1. The force of attractio

n between an ion and a polar molecule is inversely proportional to the square of the distance between the center of the ion and the oppositely charged pole of the dipole. 2. The higher the ion charge, the stronger the attraction between the ion and a polar molecule. 3. The greater the magnitude of the dipole, the greater the attraction between the ion and a polar molecule.
Chemistry
1 answer:
Kitty [74]3 years ago
6 0

Answer:

1, 2 and 3 are correct.

Explanation:

The force of the attraction is calculated by Coulomb's law as:

\frac {K\times q_1\times q_2}{d^2}

Where,  

K is the Coulomb's constant having value 9×10⁹ N. m²/C²

q_1\ and\ q_2 are the charges on the dipole and ion respectively.

d is the distance between them.

Since F is inversely proportional to square of distance between them, so statement 1 is true.

F is directly proportional to the charge , so on increasing charge, force of attraction increases. Hence, statement 2 is true.

The greater the magnitude of the dipole means the greater the charge on dipole. Hence, statement 3 is also true.

You might be interested in
__MgCl2 +
Anna35 [415]

Answer:

24.5 g of NaCl

Explanation:

We begin from the balanced reaction:

3MgCl₂ +   2Na₃PO₄  →    6NaCl   +  Mg₃(PO₄)₂

If the sodium phosphate is in excess, then the limting reagent is the magnessium chloride.

We convert mass to moles:

20 g . 1mol / 95.2g = 0.210 moles.

3 moles of MgCl₂ can produce 6 moles of NaCl

0.210 moles of salt, may produce (0.210 . 6) /3 = 0.420 moles

Ratio of reactant is twice the product

We convert the moles to mass:

0.420 mol .  58.45 g/mol = 24.5 g

6 0
3 years ago
Please answer in details. what class of carbon is coal ​
klio [65]
Coal falls under Graphite
4 0
3 years ago
Describe two physical and two chemical changes involved in cooking. (4 points)
Ivenika [448]
Physical changes are when things get changed without altering chemical consistencies, which is melting solid butter into liquid one, or boiling water. Chemical changes are things such as caramelizing sugar when making sweets, or when carbon dioxide is created and released when baking bread.
7 0
3 years ago
Why is it important to do further investigations to determine if a chemical change really occurred?
KatRina [158]

Answer:

x

Explanation:

5 0
3 years ago
A chemist must dilute of aqueous aluminum chloride solution until the concentration falls to . He'll do this by adding distilled
marshall27 [118]

Answer:

0.257 L

Explanation:

The values missing in the question has been assumed with common sense so  that the concept could be applied

Initial volume of the AICI3 solution =23.1 \mathrm{mL}

Initial Molarity of the solution =833 \mathrm{mM}

Final molarity of the solution =75.0 \mathrm{mM}

Final volume of the solution =?

From Law of Dilution, M_{f} V_{f}=M_{i} V_{i}

\Rightarrow V_{f}=\frac{M_{i} V_{i}}{M_{f}}=\frac{833 \mathrm{mM} \times 23.1 \mathrm{mL}}{75.0 \mathrm{mM}}=256.564 \mathrm{mL}=0.256564 \mathrm{L}=0.257 L

Final Volume of the solution =0.257

7 0
3 years ago
Other questions:
  • Explain the result when aluminum is placed between the liquid and the wick
    9·1 answer
  • why should the pka of a leaving groups conjugate acid be considered when performing a substitution reaction
    6·1 answer
  • A 10kg bowling ball would require what force to accelerate down an alleyway at a rate of 3m/s2?
    6·1 answer
  • Ecology is defunded as the environment study of
    14·2 answers
  • What do neurons and protons have in common?
    13·2 answers
  • How many moles of H2O are needed to react with a mole of 3.0 of Na?​
    11·1 answer
  • Which of Newton's Laws describes the relationship between the mass
    8·1 answer
  • A chemistry student needs 30.0 g of acetic acid for an experiment. He has available 1.2 kg of a 7.58% w/w solution of acetic aci
    10·1 answer
  • What is the percent of oxygen in H2O2?
    10·2 answers
  • Water, also known as H2O, cannot be separated into hydrogen and oxygen.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!