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creativ13 [48]
3 years ago
13

The following reaction does not proceed to form a product: HNO3 + Cu → no reaction. Why?

Chemistry
1 answer:
dsp733 years ago
8 0

Answer:

A) Copper has a lower activity than hydrogen and cannot replace it.

Explanation:

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What stress would shift the equilibrium position of the following system to the left?
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Answer:

Heating the system

Explanation:

According to the principle of Le Chatelier, for a system at equilibrium, a specific disturbance would make the equilibrium shift toward the direction which minimizes such a disturbance.

Since we wish to shift the equilibrium to the left, this means we wish to increase the concentration of products, as an excess in their concentration would make the products react and produce more reactants in order to lower the excess concentration of products.

Since heat is also a product, an increase in heat would shift the equilibrium toward the left, as this would consume the excess of heat by producing the reactants.

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Which of the following describes a solution of 1 gram of salt dissolved in 500 mL of water?
Greeley [361]

Answer:

B

Explanation:

Homogeneous= all particles are dissolved thoroughly

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8 0
3 years ago
A system gains 652 kJ of heat, resulting in a change in internal energy of the system equal to +241 kJ. How much work is done?
levacccp [35]

Answer:

-411 kj

Explanation:

We solve by using this formula

∆U = ∆Q + ∆W

This formula is the first law of thermodynamics

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Putting the value into the equation

+241 = 652 + W

Workdone = 241 - 652

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Since work done is negative it means that work was done by the system

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