b. a chemical that cannot be broken down or separated into other chemicals
Answer:
both are a number group of 12
Explanation:
dozen=12
Answer:
I think it's D
Explanation:
I'm so sorry if that's wrong, hope it helps!
Answer:

Explanation:

As given in the question that methane(
) is taken excess amount
mass of
depend only on mass of fluorine
mass of
=180 g
mole of
=
=9.47
3 mole of
gives 1 mole of 
so 1 mole will give
mole of 
therefore,
9.47 mole of
will give
mole of 
