When Magnesium reacts with oxygen, heat is
...When Magnesium reacts with oxygen, heat is
absorbed and the reaction is endothermic
evolved and the reaction is endothermic
evolved and the reaction is exothermic
absorbed and the reaction is exothermic
Correct answer is C
The Magnesium actually reacts with oxygen in the air, is burnt and produces a bright light. The bright light emits a lot of heat so the reaction is exothermic.
What is the atomic number of Gadolinium? ...
The general formula for the Alkanals is? ...
Which of the following molecules is not linear in shape? ...
When sodium chloride and metallic sodium are each dissolved in water ...
Which of the following compounds is NOT an isomers of 2,2 dimethylbutane? ...
The type of energy changes that accompany the mixing of a strong acid to a strong base is ...
The air around a petroleum refinery is most likely to contain? ...
Which of the following statements about endothermic reaction is correct? ...