Which contributes to the dissolution of sugar in water?

a. a strong pull of water molecules on a polar covalent compound
b. the dissociation of an ionic compound in water
c. a strong pull of water molecules on an ionic compound
d. the dissociation of a polar covalent compound in water

and it's not a or d according to my test. please help

c

Explanation:on my test it wasn’t any of the dissociation ones so it had to be one of the pull ones and if it’s not a it had to be c

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"