Question

please give me the answer​

Answer 1

Answer:

hope u got it and if it helped plz lemme know

Answer 2

Answer:

Molar mass of C2 H2=2(C)+2(H)=2*12+2*1=26

S8=8*32=256

HNO3=1(H)+1(N)+3(O)=1*1+1*14+3*16=63