What’s the balanced equation for the reaction between zinc oxide and dilute hydrochloric acid ?

ZnO + 2HCl → ZnCl₂ + H₂O

Explanation:

The unbalanced reaction between zinc oxide (ZnO) and dilute hydrochloric acid (HCl) is:

Now we'll procede to balance the equation:

The number of atoms for each element is the same on both sides, so the equation is now balanced.

"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"

a is the correct answer