Answer don't know at all but i will find out by tomorrow
Explanation: sorry
A.) burning fossil fuels contributes to climate change.
Answer is: Reactants: 2VCl2 and 3Cl2; product: 2VCl5.
Balanced chemical reaction: 2VCl₂ + 3Cl₂ → 2VCl₅.
According to principle of mass conservation, number of atoms must be equal on both side of chemical reaction.
There are ten chlorine atoms and two vanadium atoms on both side of balanced chemical reaction.
Answer:
Option a, 
Explanation:
According to Arrhenius concept of acids and bases, acids are those substances which releases H+ in aqueous solution and bases are those which releases OH- in aqueous solution.
Among the given only
can release
in aqueous solution.

LiOH releases
, therefore it is an Arrhenius base.
and
cannot releases
.
So, the correct option is option a.
Carbon Reasons: (1) Quicklime is produced by the thermally decomposing limestone, which produces carbon dioxide as a byproduct
<span>CaC<span>o3 --> </span>CaO+C<span>O2
</span></span>
(2) Since this reaction requires a large amount of energy, fuel (usually coal) is burned, which produces carbon dioxide