Answer:
D. 7
Explanation:
The halogens are found in Group 7 of the Periodic Table. If Bromine is a halogen, then that means it would be found in Group 7. Also, elements in Group 7 have 7 electrons in its outer shell, Bromine would have 7 electrons in its outer shell.
Answer:
d) el niño would lead to the death of organisms or populations
Explanation:
Answer:
Brown color of the solution decreases
Explanation:
is brown in color whereas
is colorless.
Equilibrium reaction between
and
is as follows:

As per the Le Chatelier's principle, if pressure of a equilibrium is increased, the equilibrium will shift in the direction having fewer no. of moles of gases.
In the given equilibrium,
side has more no. of moles. So on increasing pressure, equilibrium will shift towards the side of
or more formation of
will take place.
Therefore, more
will decompose that will decrease the brown color of the solution as
is colorless.
<span>The initial mole fraction of the hydrogen gas is the same value as the nitrogen gas due to the fact neither material consumes the other. Because of this equal ratios where mixed initially, with the outcome in volume being the same.</span>