I'm 17 from Ohio and love to goof around on snapc. hat I'm a Jesus loving dude. Mlawr673 feel free to add me. Up for anything and hope to make some great friends.

Answer with your snap for 45 points! Please be my age or close to that. Thanks, and hopefully we'll talk soon.

Cool

Explanation:

I'm Matthias a person who thinks God is cool.

"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"