Which chemical equation is balanced? A. CaO2 + HCl → CaCl2 + H20 B. CO2 + H2O + H2CO2 C. K+ H2O → K20 + H2 D. MgO + 2HCI – MgCl2 + H20 10 points if you answer fast

Question

asked Jan 9, 2021 172k views

1 Answer

Clayton Rothschild · Answer 1 · 2021-01-15T03:01:05+0000

D. MgO + 2HCI – MgCl2 + H20

The chemical equation is said to be balanced if the number of atoms in the reactants is equal to the number of atoms in the product

A. CaO2 + HCl → CaCl2 + H20

atoms O, Cl and H are not the same

B. CO2 + H2O + H2CO2

atoms O are not the same

C. K+ H2O → K20 + H2

atoms K are not the same

D. MgO + 2HCI – MgCl2 + H20

Mg, left = 1, right=1

O, left=1, right=1

H, left=2, right=2

Cl, left=2, right=2

Chemical equation is balanced