Answer:
chemical reactions are: the combination of elements to form compounds, the ... Equations may be expressed in words: Mercury(II) oxide decomposes to mercury and oxygen. ... The arrow ( ) means "reacts to form" or "yields.
Explanation:
Answer:
He
Explanation:
From Graham's law of diffusion, lighter or less dense gas tends to diffuse faster than denser gas amongst the list, He is the lightest gas and so will diffuse faster
Answer:
A
Explanation:
Crabs were exposed to a toxin in the water.
Mechanical waves need mediums. or else it isn't a mechanical wave
Answer:
About redox reaction which of the given statements are true?
Explanation:
Redox reaction is the one in which both oxidation and reduction reactions take place simultaneously.
For example:
In this reaction, carbon undergoes oxidation and oxygen undergoes reduction simultaneously.
During this reaction, mutual exchange of electrosn take place between the oxidant and the reductant.
Among the given options,
Option B. electrons are transferred
and
option C.They include both oxidation and reduction takes place are the correct answers.