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Cloud [144]
3 years ago
8

What type of chemical reaction does this equation represent? Ag2S + KCN --> AgCN + K2S

Chemistry
1 answer:
Lera25 [3.4K]3 years ago
8 0
The type of chemical reaction is "Double displacement"
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__________ are composed of two or more covalently bonded atoms.
polet [3.4K]

Answer:

i think it is molecules.

Explanation:

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3 years ago
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What property of liquid oxygen makes it especially difficult and potentially harmful to work with at home?
irga5000 [103]
The property of liquid oxygen that makes it especially difficult and potentially harmful to work with at home would be its cryogenic temperature. Liquid oxygen is being produced from the compression of oxygen gas to -196 degrees Celsius. As you can see, it has a very cold temperature that is why it used in cryogenics. Although liquid oxygen is non-toxic to humans, it would cause burns that are severe when being touched. Also, it would make certain materials brittle and unstable. Another property that makes it dangerous for use at home would be that it is very flammable. Proper handling is a must for this substance.
3 0
4 years ago
Calculate the number of moles in the following: 2.8 X 10^24 atoms of Cl2
vova2212 [387]

Answer:

<h3>The answer is 4.65 moles</h3>

Explanation:

To find the number of moles given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question

N = 2.8 × 10²⁴ atoms of Cl2

So we have

n =  \frac{2.8 \times  {10}^{24} }{6.02 \times  {10}^{23}  }  \\  = 4.65116279069...

We have the final answer as

<h3>4.65 moles</h3>

Hope this helps you

7 0
3 years ago
What effect will increased pressure have on 4A (g) + 5B (g) ---&gt; 2C (g) + 7D (g) 
Pie

Answer:

  • <em><u>Option a. no change</u></em>

Explanation:

The question makes sense only if the equation is an equilibrium reaction:

  • <em>4A (g) + 5B (g) ⇄ 2C (g) + 7D (g) </em>

This is, A and B react to produce C and D, forward reaction; and C and D react to form A and B, reverse reaction.

Then, you can study the effect of increased pressure using LeChatelier's principle.

To counteract the disturbing effect produced by increased pressure on the equilibrium, the system will react shifting the toward to the side where the pressure could be decreased.

That would be toward the side that has less gas molecules.

Since both sides have 9 molecules (4 + 5 = 2 + 7 = 9), the equilibrium concetrations will not change.

That is represented by the first choice: no change.

7 0
4 years ago
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