DAWN

HAVING SOME PROBLEM WITH THIS . -2(X+7) IS THE ANSWER 14X? ALSO CAN YOU ADVISE ME THE RULES OF NEG AND POSITIVES ..IS 2 POSTIVES A NEG OR TO NEG A POS, I AM VERY CONFUSED ,,PLEASE HELP ME

Hydrogen cyanide, HCN, can be made by a two-step process. First, ammonia is reacted with O2 to give nitric oxide, NO. 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) Then nitric oxide is reacted with methane, CH4. 2 NO(g) + 2 CH4(g) → 2 HCN(g) + 2 H2O(g) + H2(g)...

Can a/b and (a+b)/b ever form a proportion? Why or why not?

YES