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4 years ago

What do the broken lines connected to hydrogen atoms represent in this diagram

Chemistry

2 answers:

dmitriy555 [2]4 years ago

8 0

<span>A dashed line represents a hydrogen bond because they are the weakest of the bonds</span>

NikAS [45]4 years ago

6 0

The correct answer to the question is B.

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One of the uses of methanol (CH3OH) in dilute form is as a windshield washer antifreeze. In pure form, methanol has a molar conc

Dovator [93]

<h3>Mol of methanol =12.35</h3><h3>Further explanation</h3>

Mole itself is the number of particles contained in a substance

1 mole = 6.02.10²³ particles

Mole : the ratio of the amount of substance mass and its molar mass

$\large{\boxed{\boxed{\bold{mole=\frac{mass}{molar\:mass}}}}$

Molarity is a way to express the concentration of the solution

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

$\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}$

Molar concentration of methanol=24.7 M

Volume of solution = 500 ml = 0.5 L

$\tt mol=M\times V\\\\mol=24.7\times 0.5\\\\mol=12.35$

7 0

3 years ago

Balance the following half-reaction: (acidic) VO2+(aq) → V3+(aq) Express your answer as a half-reaction. Identify all of the pha

ivolga24 [154]

Answer:

The balanced half reaction in an acidic medium is :

$VO^{2+}(aq)+2H^+(aq)+e^-\rightarrow V^{3+}(aq)+H_2O(l)$

Explanation:

$VO^{2+}(aq)\rightarrow V^{3+}(aq)$

While balancing the half-reaction in an acidic medium, we will first balance oxygen atoms by adding water:

1) Adding 1 water molecule on product side to balance oxygen atoms.

$VO^{2+}(aq)\rightarrow V^{3+}(aq)+H_2O(l)$

Now balance hydrogen atom by adding $H^+ ions$ .

2) Adding 2 hydrogen ions on reactant side to balance hydrogen atoms.

$VO^{2+}(aq)+2H^+(aq)\rightarrow V^{3+}(aq)+H_2O(l)$

Now balance the charge adding electrons on the side where positive charge is mor.

3) Adding 1 electrons on reactant side to balance charge of the overall reaction:

$VO^{2+}(aq)+2H^+(aq)+e^-\rightarrow V^{3+}(aq)+H_2O(l)$

The balanced half reaction in an acidic medium is :

$VO^{2+}(aq)+2H^+(aq)+e^-\rightarrow V^{3+}(aq)+H_2O(l)$

6 0

3 years ago

A battery has an electrical ______________ energy

aleksley [76]

Answer:

Electrical Energy

Explanation:

There are a variety of chemical and mechanical devices that are called batteries, although they operate on different physical principles. A battery for the purposes of this explanation will be a device that can store energy in a chemical form and convert that stored chemical energy into electrical energy when needed.

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3 years ago

For a nucleus to go through mitosis,

ASHA 777 [7]

Answer:

Explanation:

I had this in a test

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3 years ago

How to write an equilibrium constant expression

Lelechka [254]

The equilibrium constant expression is the ratio of the concentrations of the products over the reactants. Notice how each concentration of product or reactant is raised to the power of its coefficient. For example, the concentration of D is raised to the power of 3 since it is 3D in the balanced reaction.

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3 years ago