6co2 + __h2o → c6h12o6 + 6o2 in order to balance the equation, what coefficient must be placed in front of h2o?

Explanation:

An equation that holds same number of atoms on both reactant and product side is known as a balanced chemical equation.

For example,

Here, number of reactant atoms are as follows.

C = 6

O = 13

H = 2

Number of atoms on product side are as follows.

C = 6

O = 18

H = 12

Therefore, to balance this chemical equation we multiply on reactant side by 6.

Hence, the balanced chemical reaction equation is as follows.

Thus, we can conclude that in order to balance the equation, coefficient which must be placed in front of is 6.

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.