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2 years ago

The compound FeCl3 is made of...

Chemistry

2 answers:

Dima020 [189]2 years ago

4 0

Answer: $FeCl_3$

Explanation:

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.

$FeCl_3$ is a compound formed by the combination of iron and chlorine where one atom of iron combines with 3 atoms of chlorine.

This is an ionic compound formed by the combination of $Fe^{3+}$ and $Cl^-$ ions. The neutral ionic compound formed is $FeCl_3$ .

3 molecules of ferric chloride are represented by $3FeCl_3$ .

notka56 [123]2 years ago

3 0

The compound FeCl3 is made of one atom and three atoms of chlorine

explanation

FeCl3 is made up of two elements.

that is iron with Fe chemical symbol and chlorine with Cl chemical symbol.

There are 3 atoms of chlorine in FeCl3 because the subscript in front of Cl in FeCl3 is 3.

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The ground state electron configuration of Fe is what

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Answer:

Iron?

Explanation:

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2 years ago

A fixed mass of gas has a volume of 92 cm cube and 3 degrees Celsius. What will be its volume at 18 degrees celsius if the press

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Answer:

94.8454

Explanation:

Let volume be V

Let Temperature be T

V1= 92

T1= 3C but to kelvin 273+3= 300K

V2= ?

T2= 18 C but to kelvin 18+273= 291

$\frac{v1}{t1} = \frac{v2}{t2}$

$\frac{92}{300} = \frac{v2}{291}$

$v2 \times 300 = 92 \times 291$

$v2 = \frac{92 \times 291}{300}$

$v2 = 94.8454$

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2 years ago

A sample of substance X that has a mass of 326.0 g releases 4325.8 call when it freezes at its freezing point. If substance X ha

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Answer : The molar heat of fusion for substance X is, 775.6 cal/mol

Explanation :

First we have to calculate the moles of substance X.

$\text{Moles of substance X}=\frac{\text{Mass of substance X}}{\text{Molar mass of substance X}}$

Given:

Molar mass of substance X = 58.45 g/mole

Mass of substance X = 326.0 g

Now put all the given values in the above expression, we get:

$\text{Moles of substance X}=\frac{326.0g}{58.45g/mol}=5.577mol$

Now we have to calculate the molar heat of fusion for substance X.

$\Delta H=\frac{Q}{n}$

where,

Q = heat releases = 4325.8 cal

$\Delta H$ = molar heat of fusion for substance X = ?

n = moles = 5.577 mol

Now put all the given values in the above expression, we get:

$\Delta H=\frac{4325.8cal}{5.577mol}=775.6cal/mol$

Thus, the molar heat of fusion for substance X is, 775.6 cal/mol

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3 years ago

Fill in the coefficients that will balance the following reaction: Zn +Fe(NO3)2---ZnNO3+Fe

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In order to balance reactions, the number of each element must be the same on the left and right side. If I have 3 of element X on one side, I must have 3 of element X on the other side. That being said:

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I have two NO3 groups on the left, so I will add a coefficient of 2 in front of the compound which has an NO3 group on the right side.

Zn + Fe(NO3)2 —> 2ZnNO3 + Fe

Since I now have 2 Zn’s on the right, and only 1 on the left, I will add a coefficient of 2 in front of Zn on the left.

2Zn + Fe(NO3)2 —> 2ZnNO3 + Fe

Lets check:
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Fe: 1 right, 1 left (correct)
NO3 groups: 2 right, 2 left

We have successfully balanced the equation. :)

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Answer:

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2 years ago