Answer:
just see if i am not wrong
learning balancing in chemistry it take time
hope i am correct
The answer is c)11 because copper has 11 valence electrons
Answer:
The elements in group 13 and group 15 form a cation with a -3 charge each.
This may help you
First write and balance the equation, being:
CaCO3 - CaO + CO2
Then, using the periodic table, find the molecular masses of CaCO3 and of CaO, finding their ratio. That will be 100g:56g or 0.1kg:0.056kg. Since you have 4.7kg of CaCO3, it corresponds to Xkg of CaO. Making x the subject, it should be X= 4.7*0.056/100=0,002632
Answer:
He's flying and was looking
Explanation:
