Which of the following correctly describes the electrical charges of subatomic particles? B Protons/positive; neutrons/negative; electrons/negative

C Protons/neutral; neutrons/positive ; electrons/negative

D Protons/negative; neutrons/neutral; electrons/negative

D Protons/negative; neutrons/neutral; electrons/negative

Explanation:

There are three fundamental subatomic particles found in atom which are the protons, neutrons and electrons.

In the tiny central nucleus, both protons and neutrons can be found

The electrons occupy the bulk volume of the atom.

"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"