Tuesday Dec 20 answers to HW questions on balancing
continue with balancing eqations practice
Warm ­ Up
Balance the following chemical equations:
1. Mg + O2 ⇒ MgO
2. CH4
+ O2
⇒
3. NaOH + HCl
CO2
+ H2O
⇒ NaCl = H2O
Practice Balancing Equations
Write the correct coefficient next to each molecule to balance the equation.
Correct Answer 2
6
1
5
1
3
2
4
2
1
2
1
Try a few more (practice makes perfect!!!)
__Fe + ___ O2 ___ Fe3O4
__Mg + __HNO3 __ H2 + __Mg(NO3)2
___ Na3PO4 + ____ KOH à ____ NaOH + ____ K3PO4
Answers
Try a few more (practice makes perfect!!!)
__Fe + ___ O2 ___ Fe3O4
__Mg + __HNO3 __ H2 + __Mg(NO3)2
___ Na3PO4 + ____ KOH à ____ NaOH + ____ K3PO4
Pg 223 #4,5
Pg 229 #1,2