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UNO [17]
3 years ago
11

Water molecules are polar, with the Select one:

Chemistry
1 answer:
shusha [124]3 years ago
3 0

Answer:

b. oxygen side being slightly negative and the hydrogen side being slightly positive.

Explanation:

The water molecule is a polar molecule, that is to say that its distribution of electronic density is different throughout the molecule.

In this way, in the water molecule there is a negative partial charge towards the oxygen atom and a positive partial charge towards the hydrogen atom.

This polar characteristic of the water molecule allows ions and other molecules to exhibit water solubility and is widely used in chemical reactions.

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He equation for the dissociation of pyridine is
sergeinik [125]

Answer:

10.10

Explanation:

Step 1: Write the basic dissociation reaction for pyridine

C₅H₅N(aq) + H₂O(l) ⇌ C₅H₅NH⁺(aq) + OH⁻(aq)      Kb = 1.9 × 10⁻⁹

Step 2: Calculate [OH⁻]

For a weak base, we will use the following expression.

[OH⁻] = √(Cb × Kb) = √(9.2 × 1.9 × 10⁻⁹) = 1.3 × 10⁻⁴ M

Step 3: Calculate pOH

We will use the definition of pOH.

pOH = -log [OH⁻] = -log 1.3 × 10⁻⁴ = 3.9

Step 4: Calculate pH

We will use the following expression.

pH = 14 - pOH = 14 - 3.9 = 10.10

3 0
3 years ago
How many gallons are equivalent to 4000.0 ml (3.78L=1gal) show work
Vinvika [58]
1.0566 gal. 


H  O  W  E  V  E  R

the constant formula you can use for solving and simplifying equations such as these, you can simply look up the metric system online and figure one out. hoped this helped!
6 0
3 years ago
Which statement best describes scientific laws? Scientific laws are facts that describe natural events. Scientific laws are theo
Fiesta28 [93]
Well scientific laws are really laws! You can't change a scientific law and laws can be facts as well. Hope this helps!
7 0
3 years ago
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just olya [345]
A) heating a pan of water until the water is all gone because then it would change from a liquid top a gas.
6 0
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Which is a FALSE statement about compounds?
rewona [7]

Answer:  D. Made of only one kind of atom

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