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2 years ago

What is the definition of bond (in chemistry) ?

Chemistry

2 answers:

jeka942 years ago

8 0

Answer:

Bond is a force that binds two atoms together.

Sav [38]2 years ago

5 0

Answer:

A bond is a link between atoms in molecules or compounds and between ions and molecules in crystals. A bond represents a lasting attraction between different atoms, molecules or ions.

Hope this helps!

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the value of kc for the following reaction is 0.630 at 409 K N2O4(g) --> 2NO2(g) if a reaction vessel at that temperature int

stealth61 [152]

Answer: The concentration of nitrogen dioxide at equilibrium is 0.063 M

Explanation:

We are given:

Initial concentration of nitrogen dioxide = 0.0250 M

Initial concentration of dinitrogen tetraoxide = 0.0250 M

For the given chemical equation:

$N_2O_4(g)\rightleftharpoons 2NO_2(g)$

Initial: 0.025 0.025

At eqllm: 0.025-x 0.025+2x

The expression of $K_c$ for above equation follows:

$K_c=\frac{[NO_2]^2}{[N_2O_4]}$

We are given:

$K_c=0.630$

Putting values in above expression, we get:

$0.630=\frac{(0.025+2x)^2}{(0.025-x)}\\\\x=-0.2013,0.019$

Neglecting the negative value of 'x', because concentration cannot be negative

So, equilibrium concentration of nitrogen dioxide = (0.025 + 2x) = [0.025 + 2(0.019)] = 0.063 M

Hence, the concentration of nitrogen dioxide at equilibrium is 0.063 M

6 0

3 years ago

Explain the importance of concentration as it pertains to a solution

julia-pushkina [17]

There it is, I hope it gets to be helpful

5 0

3 years ago

Agree or disagree The sun and stars move around earth everyday

Mashutka [201]

Agree definitely :P poop dance

7 0

3 years ago

For the following reaction, find the value of Q and predict the direction of change, given that a 1L flask initially contains 2

Tresset [83]

Answer:

C) Q < K, reaction will make more products

Explanation:

1/8 S8(s) + 3 F2(g) ↔ SF6(g)

∴ Kc = 0.425 = [ SF6 ] / [ F2 ]³

∴ Q = [ SF6 ] / [ F2 ]³

∴ [ SF6 ] = 2 mol/L

∴ [ F2 ] = 2 mol/L

⇒ Q = ( 2 ) / ( 2³)

⇒ Q = 0.25

⇒ Q < K, reaction will make more products

5 0

3 years ago

It would be nice if someone HELPED. During an experiment, you observe that two charged balloons repel each other. When you bring

jeka57 [31]

Answer:

They are similarly charged, which is why they repel each other.

8 0

2 years ago

Read 2 more answers