Someone please help will mark as brainliest

What is the value of keq for the reaction expressed in scientific notation

Air can be considered a mixture. which statement does not explain why?

Pinene is an unsaturated hydrocarbon found in pine resin. if pinene has m+ = 136 and contains 1 double bond(s) and 2 ring(s); what is its molecular formula? enter the formula in the form ch first, then all other atoms in alphabetical order; do not use subscripts. the formula is case-sensitive