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3 years ago

PLZZZZ HELP Question 6 (5 points)

Chemistry

1 answer:

jonny [76]3 years ago

7 0

Answer:

It contains a protective layer of ozone.

Explanation:

The ozone layer is not contained in the troposphere. It is located in a layer above above the ozone which is called the stratosphere.

The troposphere is lowest layer of the atmosphere
This layer is the closest to us and it is where all weather conditions occur.
It has a thickness of about 10km.
Also, in the troposphere, temperature decreases vertically up.

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The equation for the reaction is

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67.029g to three significant figures

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67.0 Should be th3 answer

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3 years ago

Read 2 more answers

For the following reactions, write a balanced equation using half-reactions and calculate the voltage to be expected.

Iteru [2.4K]

a) $2Na(s) +2H_2O(I)$ → $2Na^+(aq) + OH^-(aq)+ H_2(g)$

b) $2Ag (s) +2H^(aq)$ → $2 Ag^+ (aq) +H_2(g)$

<h3>What are half-reactions?</h3>

The half-reaction method is a way to balance redox reactions. It involves breaking the overall equation down into an oxidation part and a reduction part.

$2Na(s) +2H_2O(I)$ → $2Na^+(aq) + OH^-(aq)+ H_2(g)$

$E^0 cell = E^0 (reduction) - E^0 (oxidation)$

= $E^0(\frac{H_2O}{H_2}, OH^-) -E^0(Na^+/Na)$

= -0.83 - (-2.71) =1.88V

$2Ag (s) +2H^(aq)$ → $2 Ag^+ (aq) +H_2(g)$

$E^0cell$ = $E^0(H^+/H_2) -E^0(Ag^+/Ag)$

$E^0cell$ =-0. - (0.8) =-0.8V

Learn more about the half-reactions here:

https://brainly.in/question/18053421

#SPJ1

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2 years ago

How does collision theory relate temperature to the rate of a reaction?

nadya68 [22]

Answer:

Explanation:

The collision theory explains why reactions occur between atoms, ions, and molecules. With the increase in temperature, there is an increase in the number of collisions. Increasing the concentration of a reactant increases the frequency of collisions between reactants and will, therefore, increase the reaction rate.

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3 years ago

A sample of 2.45g aluminum oxide decomposes into 1.3g of aluminum and 1.15g of oxygen. What is the percentage composition of the

Vitek1552 [10]

Answer:

% $Al = 53.1%$ %