Which formula is comparing a sample of a gas under two different conditions of volume and temperature, if the pressure is constant? ⚪︎ V1 V2
_ = ___
T1 T2

⚪︎ xy = k

⚪︎ V
__ = k
T

⚪︎ P1V1 = P2V2

⚪︎ PV = k

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