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 

Answer:
You did very well and its correct.
Explanation:
Great Job!
Sound waves.
Radio waves and Microwaves are non-ionizing radiation. Gamma waves are ionizing radiation