Respuesta :
The magnesium is an element and the powder produced by burning it is a compound.
The above reaction is an example of an oxidation reaction.
What is magnesium?
- Magnesium is a chemical element with atomic number 12 and symbol Mg.
- Magnesium is a shiny grey metal that shares many physical and chemical properties with the other five alkaline earth metals like beryllium (Be), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).
What is element?
An element is a pure substance consisting only of atoms that all have the same numbers of protons in their nuclei.
What is compound?
A compound is a substance that forms when two or more elements combine chemically.
What is oxidation reaction?
- An oxidation reaction is a reaction in which oxygen atom is added or hydrogen atom is lost.
- However, not all the oxidation reactions involve addition of oxygen or removal of hydrogen atoms. So, we also need to define it in terms of electrons donated.
- The reaction in which electrons are released is called oxidation reaction.
- Thus, the atom become positively charged as electrons are released by it in the oxidation reaction.
When magnesium ribbon is burnt in air, it forms a white powder of magnesium oxide.
2Mg + O2 → 2MgO
Mg(magnesium) is an element and MgO(magnesium oxide) is a compound, because magnesium is a pure substance consisting only of magnesium atoms. Whereas, MgO is a compound that is formed when Mg and O2 combine.
2Mg + O2 → 2MgO
The above reaction is an example of an oxidation reaction.
Here, Mg gets oxidized to form MgO.
Magnesium donates two electrons to oxygen atoms to form this powdery product.
Hence, option A is the correct answer.
To learn more about oxidation reaction here
https://brainly.com/question/2525090
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