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Marianna [84]
3 years ago
8

Identify the missing coefficient in the balanced equation and classify the type of reaction. 2Cl2 + 2KI ⟶ _____KCl2 + I2

Chemistry
1 answer:
bazaltina [42]3 years ago
6 0
The given equation is follow,

<span>                                2 Cl</span>₂<span> + 2 KI    ⟶    __ KCl</span>₂<span>  +  I</span>₂

There are two Iodine atoms at left hand side of the equation and two at right hand side of the equation so Iodine is balanced.

There are four chlorine atoms at left hand side and two at right hand side. In order to balance chlorine atoms we will multiply KCl₂ on right hand side by 2. So,
                                2 Cl₂ + 2 KI    ⟶    <u>2</u> KCl₂  +  I₂

Now, the potassium atoms are same on both sides, i.e. two.

Result:
           The missing coefficient in given equation is 2.
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SET UP THE CHART
Always start with the giving

0.624 mol O2    /  1mol of CO2
___________  / _____________ = Cancel the queal ( O2)
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You should look at the giving number ( how many num u gor ever there) 
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3 0
3 years ago
How many moles of O₂ are needed to react completely with 35.0 mol of FeCl₃? *
densk [106]

Answer:

26.3 moles of O₂ are needed to react completely with 35.0 mol of FeCl₃

Explanation:

To determine the number of moles of O₂ that are needed to react completely with 35.0 mol of FeCl₃, it is possible to use the reaction stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction),  and rule of three as follows: if 4 moles of FeCl₃ react with 3 moles of O₂, 35 moles of FeCl₃ with how many moles of O₂ will it react?

molesofO_{2} =\frac{35 moles of FeCl_{3}*3 moles of O_{2}  }{4 moles of FeCl_{3}}

moles of O₂= 26.25 ≅ 26.3

<u><em>26.3 moles of O₂ are needed to react completely with 35.0 mol of FeCl₃</em></u>

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