Question

Practice: Balance the following chemical equations. (These equations are not in the Gizmo.)

A.


Na +


Cl2 🡪


NaCl




B.


Na +


H2O 🡪


NaOH +


H2
C.


Mg +


O2 🡪


MgO




D.


KClO3 🡪


KCl +


O2




E.


Al +


CuO 🡪


Al2O3 +


Cu
F.


I2 +


Na2S2O3 🡪


NaI +


Na2S4O6
G.


Mg +


P4 🡪


Mg3P2

Answer 1

A. 2Na + Cl2 🡪 2NaCl

B. 2Na + 2H2O 🡪 2NaOH + H2

C. 2Mg + O2 🡪 2MgO

D. 2KClO3 🡪 2KCl + 3O2

E. 2Al + 3CuO 🡪 Al2O3 + 3Cu

F. 2I2 + Na2S2O3 🡪 2NaI + Na2S4O6

G. 3Mg + P4 🡪 Mg3P2