Which particle in the atom has the smallest mass? electron proton neutron photon

Chemistry

2 answers:

kaheart [24]4 years ago

8 0

Answer:

electron

Explanation:

Reptile [31]4 years ago

6 0

Electron by far. It has a mass of only 5.45 x10^-4 amu, while a protron and neutron both have masses about 1 amu.
And a photon has no mass, but is not a part of the atom.

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The equilibrium-constant expression for a reaction written in one direction is the __________ of the one for the reaction writte

VLD [36.1K]

Answer:

reciprocal

Explanation:

The equilibrium constant for an equilibrium reaction is the ratio of the equilibrium constant for the forward reaction, Kf, to the equilibrium constant for the reverse reaction, Kr:

For A ⇄ B

The forward reaction is: A → B, with rate constant is Kf = K₁ and
The reverse reaction is: B → A, with rate constant Kr = K₂

$K_{eq}=\dfrac{K_f}{K_r}=\dfrac{K_1}{K_2}$

When you write the reaction in the other reaction, the forward and the reverse reaction are exchanged:

For B ⇄ A

The forward reaction is B → A, with rate constant Kf = K₂
The reverse reaction is A → B, with rate constant Kr = K₁

$K'_{eq}=\dfrac{K_f}{K_r}=\dfrac{K_2}{K_1}$

As you see:

$K'_{eq}=\dfrac{1}{K_{eq}}$

Thus, the equilibrium-constant expression for a reaction written in one direction is the  reciprocal___ of the one for the reaction written for the reverse direction.

8 0

4 years ago

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Mrac [35]

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5 0

1 year ago

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amm1812

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