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LiRa [457]
3 years ago
10

Which of the following statements is true?

Chemistry
2 answers:
Lera25 [3.4K]3 years ago
3 0

The  statement  which is true is

metals  lose  electrons  to become cations

<u><em>Explanation</em></u>

  • metals tends  to loss electrons to attain  noble gas  electrons  configuration.
  • When metal loses electrons they form a  positive charged ions.
  • The positively charged ion is known as  cations.
  • for  example  sodium metal (Na)  loses  1 electron to form   a cation with  a charge  of positive 1 ( Na^+)
Tems11 [23]3 years ago
3 0

Answer:

Metals lose electrons to become cations.

Explanation:

You have to lose electrons for it to be a cation, therefore B and D are false and can be eliminated.

Nonmetals tend to gain electrons and become anions, therefore C is incorrect and can be eliminated.

A is the only answer left, and it is scientifically correct.

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jeyben [28]

Explanation:

The chemical reaction given in the question is as follows -

MnO₄⁻ (aq) + 8H⁺ (aq) + 5e⁻ → Mn²⁺ (aq) + 4H₂O (l)

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As we know , the value for reduction potential are -

Mn²⁺ = + 1.51  V

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From , the data given above , the value of the reduction potential of NO₃⁻ is less than the reduction potential of Mn²⁺ .

Hence ,

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2 years ago
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Serjik [45]

Answer:

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3 years ago
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kvv77 [185]

Answer:

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