Question

write balanced equations of hydrogen with the following:
a. potassium b. fluorine c. sulfur

Answer 1

I would write them this way but leave them for you to balance.
K + H2 ==> KH
H2 + F2 --> HF
H2 + S ==> H2S--Your prof may prefer
H2 + S8 ==> H2S

Answer 2

Thanks