could you help me with these questions, I would really mean a lot .
Answers
Answer:
A substance is said to oxidised if it loses its electrons or addition of oxygen to the substance. The term oxidation was used to describe reactions where an element combines with oxygen. Oxidation meant gaining oxygen and Reduction meant losing oxygen.
with oxygen. Oxidation meant gaining oxygen and Reduction meant losing oxygen.A reaction within which there is both oxidation and reduction is called a redox reaction.
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4Na + O2 ______2Na2O
Sodium (Na) gains oxygen and gets oxidised to sodium oxide (Na2O).
2 . Sodium oxide is used in ceramics and glasses. Sodium oxide reacts exothermically with cold water to produce sodium hydroxide solution.
3. The given reactions is an example of an oxidation reaction.
The given reactions is an example of an oxidation reaction.2Mg + O2 → 2MgO
Here Mg is getting oxidized to form MgO.
4. In this combination reaction the MgO and H2O come together to from Magnesium hydroxide. That's way it's called a combination reaction. Be sure to count all of the oxygen atoms on the reactant (left) side of the equation.
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