5HNO₃ + 3P + 2H₂O = 3H₃PO₄ + 5NO
N⁺⁵ + 3e⁻ = N⁺² 5
P⁰ - 5e⁻ = P⁺⁵ 3
Answer:Graphite has a giant covalent structure in which: each carbon atom is joined to three other carbon atoms by covalent bonds.
Answer:
Equal to 0.253 mol.
Explanation:
Hello,
In this case, since hydrogen and water are in a 2:2 molar relationship, the number of moles of hydrogen necessary to produce 0.253 mol of water will be also 0.253 mol as shown on the following stoichiometric factor:

Therefore, The number of moles of hydrogen that is needed to produce 0.253 mol of water is equal to 0.253 mol.
Best regards.
Answer:
a
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