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svlad2 [7]
3 years ago
14

The hair on Jamal’s arms is standing straight up.

Chemistry
1 answer:
Alex_Xolod [135]3 years ago
8 0
Jamal’s hair is behaving that way because he is in a cold area.
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Why does a chemical equation have to be balanced
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The chemical equation needs to be balanced so that it follows the law of conservation of mass.
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Name the following ketone:
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For the reaction KClO2⟶KCl+O2 KClO2⟶KCl+O2 assign oxidation numbers to each element on each side of the equation. K in KClO2:K i
frosja888 [35]

Answer:

Explanation:

The formula of the reaction:

            KClO₂ → KCl + O₂

To assign oxidation numbers, we have to obey some rules:

  1. Elements in an uncombined state or one whose atoms combine with one another to form molecules have an oxidation number of zero.
  2. The charge on simple ions signifies their oxidation number.
  3. The algebraic sum of all the oxidation number of all atoms in a neutral compound is zero. For radicals with charges, their oxidation number is the charge.

The oxidation number of K in KClO₂:

                                   K + (-1) + 2(-2) = 0

                                    K-5 = 0

                                    K = +5

The oxidation number of K in KCl:

                                K + (-1) = 0

                                K = +1

The oxidation number Cl in KClO₂ is -1

For Cl in KCl, the oxidation number is -1

For O in KClO₂, the oxidation number is (2 x -2) = -4

For O in O₂, the oxidation number is 0

K moves from an oxidation state of +5 to +1. This is a gain of electrons and K has undergone reduction. We then say K is reduced.

O moves from an oxidation state of -4 to 0. This is a loss of electrons and O has undergone oxidation. We say O is oxidized.

7 0
3 years ago
Read 2 more answers
What is the difference between a hydrogen ion and a hydroxide ion?
Sophie [7]

Answer:

there is some difference

Explanation:

hydrogen ion --

symbol-H

Charge- 1+ or 1-

it is atom

hydroxide ion --

symbol- OH

charge-. -1

contains.- one oxygen atom and one hydrogen atom.

they are bonded.

it is a molecule

5 0
3 years ago
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