Ascientist studies the dna of three different species. the dna from species a is more similar to dna from species b than dna from species c. which species are probably the most closely related? explain your answer.

Iknow the answer is a but i don't know why

Consider the equilibrium system: 2icl(s) ⇄ i2(s) + cl2(g) which of the following changes will increase the total amount of of cl2 that can be produced? all of the listed answers are correct decreasing the volume of the container removing the cl2 as it is formed adding more icl(s) removing some of the i2(s)

Why does his teacher ask him to balance the equation by including the correct coefficient