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3 years ago

How does one recognize a redox reaction?

Chemistry

1 answer:

nika2105 [10]3 years ago

3 0

Answer:

Explanation:

A redox reaction is a reaction when oxidation states (or numbers) change during reaction.

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Oxidation number of sulphur in H2SO4

DochEvi [55]

Answer

let the oxidation of sulphur is x

2(+1)+x+4(-2)=0

+2+x-8=0

+2-8+x=0

-6+x=0

x=6

Explanation:

i hope this will help you:)

8 0

3 years ago

Why it is so hard to find life on other planets.

STatiana [176]

Answer:

Because people on earth may not have the correct technology.

Explanation:

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3 years ago

At equilibrium, the concentrations of the products and reactants for the reaction, H2 (g) + I2 (g)  2 HI (g), are [H2] = 0.106

lana [24]

Answer:

The new equilibrium concentration of HI: [HI] = 3.589 M

Explanation:

Given: Initial concentrations at original equilibrium- [H₂] = 0.106 M; [I₂] = 0.022 M; [HI] = 1.29 M

Final concentrations at new equilibrium- [H₂] = 0.95 M; [I₂] = 0.019 M; [HI] = ? M

Given chemical reaction: H₂(g) + I₂(g) → 2 HI(g)

The equilibrium constant ( $K_{c}$ ) for the given chemical reaction, is given by the equation:

$K_{c} = \frac {[HI]^{2}}{[H_{2}]\: [I_{2}]}$

At the original equilibrium state:

$K_{c} = \frac {(1.29\: M)^{2}}{(0.106\: M) \times (0.022\: M)}$

$K_{c} = \frac {1.6641}{0.002332} = 713.59$

Therefore, at the new equilibrium state:

$K_{c} = \frac {[HI]^{2}}{(0.95\: M) \times (0.019\: M)}$

$\Rightarrow K_{c} = 713.59 = \frac {[HI]^{2}}{0.01805}$

$\Rightarrow [HI]^{2} = 713.59 \times 0.01805 = 12.88$

$\Rightarrow [HI] = \sqrt {12.88} = 3.589 M$

Therefore, the new equilibrium concentration of HI: [HI] = 3.589 M

6 0

3 years ago

When you are riding a bicycle at night, your bicycle's reflectors help people in cars see your bicycle how do bicycle reflectors

Anon25 [30]

Answer: C
Explanation: the material of the bicycle reflectors cannot produce its own light. When light hits the material, it bounces back off of it creating the illusion of a light.

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3 years ago

Anyone else getting this

Alik [6]

Answer:

yeeehhhhhh

Explanation:

basically my charger doesnt work

3 0

3 years ago

Read 2 more answers