Determine whether each of the following equations is balanced or not balanced:

a. S(s)+O2(g) —> SO3(g)

b. 2Al(s)+3CL2(g) —> 2AlCl3(s)

c. 2NaOh(s)+H2SO4(aq) —> Na2SO4(aq)+H2O(l

d. C3H8(g)+5O2(g) —> 3CO2(g)+4H2O(g)

they are both synthetic elements

explanation:

d

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.