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dangina [55]
2 years ago
11

Students observe that in the presence of sunlight, silver chloride (AgCl) will react and create chlorine gas (Cl2) and leave beh

ind solid silver (Ag). Which of the following equations correctly models and balances this reaction and has the correct reaction type?
A. AgCl + sunlight → Cl2 + Ag (synthesis reaction)

B. 2AgCl + sunlight → Cl2 + 2Ag (decomposition reaction)

C. AgCl + sunlight → Cl2 + Ag (decomposition reaction)

D. 2AgCl + sunlight → Cl2 + 2Ag (synthesis reaction)
Chemistry
2 answers:
oksano4ka [1.4K]2 years ago
8 0

Answer:

(B) 2AgCl + sunlight → Cl2 + 2Ag (decomposition reaction) is correct option.

Natalka [10]2 years ago
8 0
B. Is the correct answer.
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What is the total number of moles (n) of electrons exchanged between the oxidizing agent and the reducing agent in the overall r
Sergeu [11.5K]
Answer:
             5 moles of electrons

Explanation:

The balance equation is as follow,

<span>                   5 Ag</span>⁺ + Mn⁺²<span> + 4 H</span>₂O    →<span>    5 Ag + MnO</span>₄⁻<span> + 8 H</span>⁺

Reduction of Ag:

                         Ag⁺ + 1 e⁻    →    Ag
Or,
                         5 Ag⁺  +  5 e⁻    →    5 Ag

Oxidation of Mn:

                          Mn⁺²   →    MnO₄⁻  +  5 e⁻

Result:
          Hence 5 moles of Ag⁺ accepts 5 electrons from 1 mole of Mn⁺².
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3 years ago
Find the molar mass of 2Cu (NO3)2​
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187.5558 mol

Explanation:

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Acids are used to make...<br> 1. mortar and cement<br> 2. baking soda<br> 3. car batteries
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That is correct! Great Job High School!
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What is the square root of 10<br><br> Can you guys subscribe to my friend pls, it would mean a lot
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Explanation:

3 0
2 years ago
Calculate the amount of heat required to raise the temperature of a 32g sample of water from 8°C to 22°C.
qwelly [4]

Answer:

The amount of heat required to raise the temperature of a 32g sample of water from 8°C to 22°C is 1,874.432 J

Explanation:

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

Sensible heat is the amount of heat that a body absorbs or releases without any changes in its physical state (phase change).

Between heat and temperature there is a direct proportional relationship. The constant of proportionality depends on the substance that constitutes the body and its mass, and is the product of the specific heat and the mass of the body. So, the equation that allows to calculate heat exchanges is:

Q = c * m * ΔT

where Q is the heat exchanged by a body of mass m, constituted by a substance of specific heat c and where ΔT is the variation in temperature.

In this case:

  • c= 4.184 \frac{J}{g*C}
  • m= 32 g
  • ΔT= Tfinal - Tinitial= 22°C - 8°C= 14°C

Replacing:

Q= 32 g* 4.184 \frac{J}{g*C} *14 °C

Solving:

Q= 1,874.432 J

<u><em>The amount of heat required to raise the temperature of a 32g sample of water from 8°C to 22°C is 1,874.432 J</em></u>

7 0
2 years ago
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