When two substances that cannot disolve each other are mixed, a _ mixture is formed. a heterogeneous mixture that has very small dispersed particles and stays mixed for a long time is a _.

a heterogeneous mixture that has larger dispersed particles that settle over time is a _.

The first one is "a heterogeneous mixture is formed"
The second is a colloid
the third is a suspension

hope this helps!

Explanation:

The first one is a heterogeneous mixture is formed

The second is a colloid

the third is a suspension

i think

"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"