Answer: If the oxidation number of copper changes from 0 to +2 then yes this is a redox reaction as copper lost 2 electrons and was oxidized.
Explanation:
When an element or atoms loses an electron then it acquires a positive charge.
This charge on an atom represents its oxidation state.
For example,
Here, oxidation number of copper changes from 0 to +2.
A redox reaction in which electrons are removed from an atom or a reaction where an increase in oxidation number of an atom takes place is called oxidation-half reaction. The atom itself gets oxidized.
This means that here copper lost 2 electrons and was oxidized.
Thus, we can conclude that if the oxidation number of copper changes from 0 to +2 then yes this is a redox reaction as copper lost 2 electrons and was oxidized.
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Answer:
There are 58 people in the cinema.
Explanation:
This number is actually exact and not subject to sig, digit rules.
The answer is B. because it starts at Conifer Seeds and ends at Northern goshawks.
I can guess that Z is Phosphorus. So the oxide - P4O10 (but the most known its empirical formula P2O<span>5)</span>. Reaction with water:
P4O10 + 6H2O = 4H3PO4. Acidic compound is phosphoric acid.