I think the correct answer is the first option. It has nonpolar bonds and a symmetrical structure. The structure of a BF3 molecule shows a symmetrical trigonal geometry. The net dipole moment of the molecule is zero therefore it is polar.
Answer is: both reactions
are exothermic.
<span>
In exothermic reactions, heat is released and enthalpy of reaction is less than
zero (as it show second chemical reaction).
According to Le Chatelier's principle when the reaction
is exothermic heat is included as a product (as it show first
chemical reaction).</span>
Answer:
HBrO4 < HBrO3 < HBrO2 < HBrO
Answer:
it's used by some sea shores for heat since the ocean takes time to cool down
it's used for salt
it's used to keep sea animals and certain endangered plant species
Elephants are really cool
