Question

Balance magnese oxide with hydrochloric acid

Answer 1

MgO+HCl−>MgCl2+H2O

here,
mgO=mangenese oxide
Hcl=hydrochloric acid
Mgcl2=mangenese chloride
H20=hydrogen(in thr form of gas)

after balancing,
we get,

MgO+2HCl−>MgCl2+H2O

hope this help........