Chloroform (chcl3), an important solvent, is produced by a reaction between methane and chlorine.
ch4(g) + 3 cl2(g) chcl3(g) + 3 hcl(g)
how many grams of ch4 is needed to produce 33.5 g chcl3?
g

4.49g of CH4

Explanation:Please see attachment for explanation

n+h→nh3

we must remember that nitrogen and hydrogen are both diatomic molecules in their standard gas form. this adjusts the equation to

n2+h2→nh3

now we need to adjust coefficients in order to balance the atoms on each side of the equation. currently we have 2 atoms of nitrogen and 2 atoms of hydrogen on the reactant side and 1 atom of nitrogen and 3 atoms of hydrogen on the product side.

we can balance the hydrogens by placing a coefficient of 2 in front of ammonia and a coefficient of 3 in front of the hydrogen.

n2+3h2→2nh3

this gives us 6 hydrogen on each side and coincidentally the nitrogens now equal 2 on each side.

the answers would be

the first one and the second one