Ch3br + naoh -> ch3oh +nabr when the concentration of ch3br and naoh are both 0.150m, the rate of the reaction is 0.0060m/s. (a) what is the rate of the reaction if the concetration of ch3br is doubled? /s (b) what is the rate of the reaction if the concentration of naoh is halved? /s (c) what is the rate of the reaction if the concentrations of ch3br and naoh are both increased by a factor of six? /s

(a) 0.0080 M/s

(b) 0.0020 M/s

(c) 0.0640 M/s

I hope this helps. :)

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.