Respuesta :

Explanation:

H² + Br² = 2HBr

2Mg + O² = 2MgO

2H² + O² = 2H²O

hope this helps you

Answer:

H² + Br² = 2HBr

2Mg + O² = 2MgO

H² + O² = 2H2O

HOPE IT'S WORK