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Anika [276]
1 year ago
13

What is the mass number of a single atom of magnesium-25?

Chemistry
1 answer:
Masja [62]1 year ago
3 0

Answer: It is approximately 24.985837

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2(H2S) + 3(O2) -> 2(SO2) + 2(H2O)
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How is steam different from water vapour
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Covalent bonding involves the sharing of electrons to create a full valence shell, and
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One method for preparing pure iron from Fe2O3 is by reaction with carbon monoxide.Fe2O3(s)+CO(g)→Fe(s)+CO2(g) How many moles of
larisa [96]

Answer:

The 2292 moles of CO are needed to react completely with 122 Kg of Fe₂O₃.

Explanation:

Given data:

Mass of Fe₂O₃ = 122 Kg ( 122×1000 =  122000 g)

Moles of CO = ?

Solution:

Chemical equation:

Fe₂O₃ + 3CO  → 2Fe + 3CO₂

Number of moles of  Fe₂O₃:

Number of moles = mass/ molar mass

Number of moles = 122000 g /159.69 g/mol

Number of moles = 764 mol

Now we will compare the moles of Fe₂O₃ with CO.

                               Fe₂O₃            :            CO  

                                  1                  :             3

                               764                :             3×764  =2292 mol

The 2292 moles of CO are needed to react completely with 122 Kg of Fe₂O₃.

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3 years ago
How many atoms of each element are in one molecule of this product.
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I assume about 5 atoms are in one molecule of this product
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