The complete combustion of 15.0cm of a gaseous hydrocarbon X produces 60.0 cm of carbon dioxide gas and 75.0 cm’of water vapour. What is the molecular formula of X? (All
volumes are measured at the same temperature and pressure.)
O CaH6
O C4H10
ОСНа
ОС4Н10

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.

what is the question?

the answer is barium and copper bromide

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest