A little bit psycho At night she screamin'
"I'm-ma-ma-ma out my mind"
Oh, she's hot but a psycho
So left but she's right though
At night she screamin'
"I'm-ma-ma-ma out my mind"

it should be all of them because it asks if you included all of those in your answer

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"

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.