The chart below represents different types of intermolecular forces If you have 2 substances mixed together and you know that the intermolecular forces between them are 500 kJ/mol, then which 2 substances do you think are mixed together?

A.
Xe and Kr because there are strong forces between Group 18 elements

B.
lithium bromide and water because of strong attractions between ions and polar water

C.
potassium chloride and sodium chloride because 2 solids mixed together will be highly attracted to each other since they are solids

D.
oil and water because they are not attracted to each other and would have high intermolecular forces

a chemical reaction happens

explanation:

"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"

solute : a solute is a substance that is dissolved in another substance is known as a solvent. it is mixed with a special mixture know as homogeneous mixture.

solvent: a solvent is a substance that dissolved a solute, which results in a solution is known as solvent.