Which element is oxidized in the reaction below? fe+2 + h+ + cr2o7-2 fe+3 + cr+3 + h2o?

Chemistry

1 answer:

Hunter-Best [27]3 years ago

7 0

Due to the iron hydrogen and chromium diluted oxygen. the iron become more oxydized.

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The following two compounds are constitutional isomers. Identify which of these is expected to be more acidic, and explain your

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c. Compound 2 is more acidic because its conjugate base is more resonance stabilized

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If you weighed out 0.38 g of calcium and reacted it with an excess of hcl, how many moles of h2(g) would you expect to produce?

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Answer is: 0,0095 mol of hydrogen gas will be produced in reaction.
Chemical reaction: Ca + 2HCl → CaCl₂ + H₂.
m(Ca) = 0,38 g.
n(H₂) = ?
n(Ca) = m(Ca) ÷ M(Ca).
n(Ca) = 0,38 g ÷ 40 g/mol
n(Ca) = 0,0095 mol.
from reaction: n(Ca) : n(H₂) = 1 : 1.
n(H₂) = n(Ca) = 0,0095 mol.
n - amount of substance.

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