Question

Magnesium is a light silver metal. When it is burned in oxygen, it oxidizes in a bright white light. Magnesium oxide is a white powder. How can we be sure that burning magnesium in oxygen is a chemical reaction?

A) A gas is produced.
B) Energy is absorbed.
C) There is an explosion.
D) There is color change .

Answer 1

D). There is a color change.
I hope this helps, have a great day!

Answer 2

D) There is color change .

Step-by-step explanation:

Magnesium in its metallic state is a very reactive compound because it can undergo a chemical reaction called a Combustion reaction.

A combustion reaction is a chemical reaction where a compound reacts with Oxygen in the atmosphere in the presence of heat to release water and to form an Oxide compound.

Combustion reaction also known as burning is a exothermic chemical reaction which means heat energy is always released.

When Magnesium in its metallic state reacts with oxygen in a combustion reaction, a colour change is observed. A white powder called Magnesium Oxide is formed and heat is released.