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prisoha [69]
2 years ago
14

What two factors determine whether a molecule is polar or not?

Chemistry
1 answer:
Bad White [126]2 years ago
5 0

Answer:

electronegativity of bonded atoms and shape.

Explanation:

if the shape of molecule is symmetric it will non polar. The polar molecules are trigonal in shape.

Sodium chloride is ionic compound. The electronegativity of chlorine is 3.16 and for sodium is 0.93. There is large difference is present. That's why electron from sodium is transfer to the chlorine. Sodium becomes positive and chlorine becomes negative ion and compound is polar.

Covalent bond:

It is formed by the sharing of electron pair between bonded atoms.  

The atom with larger electronegativity attract the electron pair more towards it self and becomes partial negative while the other atom becomes partial positive and compound will polar.

For example:

In water the electronegativity of oxygen is 3.44 and hydrogen is 2.2. That's why electron pair attracted more towards oxygen, thus oxygen becomes partial negative and hydrogen becomes partial positive.

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Which is the correct number of moles of NO that is produced from 13.2 moles of oxygen
Oksanka [162]
<h3>Answer:</h3>

10.6 mol NO

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Stoichiometry</u>

  • Using Dimensional Analysis
<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Balanced] 4NH₃ + 5O₂ → 4NO + 6H₂O

[Given] 13.2 mol O₂

<u>Step 2: Identify Conversions</u>

[RxN] 5 mol O₂ → 4 mol NO

<u>Step 3: Stoich</u>

  1. [DA] Set up:                                                                                                     \displaystyle 13.2 \ mol \ O_2(\frac{4 \ mol \ NO}{5 \ mol \ O_2})
  2. [DA] Multiply/Divide [Cancel out units]:                                                         \displaystyle 10.56 \ mol \ NO

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

10.56 mol NO ≈ 10.6 mol NO

5 0
2 years ago
Whats the name for K2SO4??
emmasim [6.3K]
POTASSIUM SULFATE hope this helps
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2 years ago
The curved upper surface of a liquid in a column of liquid?
Jlenok [28]

Answer:

The answer would be meniscus.

5 0
3 years ago
Please answer as soon as possible if you can
alexgriva [62]

Answer:

Second one

Explanation:

5 0
3 years ago
If I add water to 100ml of a 0.15m potassium sulfate until the final volume is 150ml what will the molarity of the diluted solut
Delicious77 [7]

Answer:

0.1 M is the answer and I have explained it in the attachment below.

Hope this helped!

8 0
3 years ago
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