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Galina-37 [17]
3 years ago
15

In the equation, 2Al (s) + 3Cl2 (g) → 2AlCl3 (s), the large number “3” in front of the Cl2 indicates:

Chemistry
2 answers:
Sophie [7]3 years ago
6 0

<u>Answer:</u> The correct answer is the number of moles of chlorine molecules needed to balance the equation.

<u>Explanation:</u>

A balanced chemical equation follows law of conservation of mass.

This law states that mass on either side of the reaction remains constant. Also, mass can neither be created, nor be destroyed, but it can only be transformed from one form to another form.

In the given chemical equation:

2Al(s)+3Cl_2(g)\rightarrow 2AlCl_3(s)

The numbers '2', '3' and '2' represents the number of moles of the specie required to balance a chemical equation.

Here, Cl_2 is a molecule of 2 chlorine atoms.

Hence, the correct answer is the number of moles of chlorine molecules needed to balance the equation.

dybincka [34]3 years ago
5 0

In the equation,

2Al(s) + 3Cl2(g) —> 2AlCl3(s),

the large number "3" in front of Cl2 indicates the the number of moles of Chlorine molecules needed to balance the equation.

Hope this will help you. 

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Answer:

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Sholpan [36]

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<h3>What is a strong acid?</h3>

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We know that a buffer is composed of a weak acid and its salt or a weak base and its salt hence if the acid H2CrO4 is present in a buffer then the other half must be  salt of the acid.

If this molecule is one half of a buffer, then the formula of the second half of the buffer is M2CrO4 where M is a univalent metal.

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wlad13 [49]

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To provide 2.4x10⁻³ moles Silver nitrate are required:

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