Balance the following equations. (A) Na+ cl2 nacl
Answers
Answer:
The balanced equation is
2Na(s)
+
Cl
2
(
g
)
→
2NaCl(s)
.
Explanation:
How to Balance the Equation
Na(s)
+
Cl
2
(
g
)
→
NaCl
.
Since there are two chlorine atoms on the left side, there needs to be two chlorine atoms on the right side. So I put a coefficient of two in front of the formula
NaCl
.
Na(s)
+
Cl
2
(
g
)
→
2NaCl
Now there are two sodium and two chlorine atoms on the right side. However, the left side has only one sodium atom. So I put a coefficient of two in front of the formula
Na
.
2Na(s)
+
Cl
2
(
g
)
→
2NaCl(s)
Now there are two sodium and two chlorine atoms on both sides of the equation and it is balanced.
Notice that I only changed the amount of each substance by changing the coefficients. I did not change the formulas.
Explanation:
write the following sets in the roaster form
A=the set of all even numbers less than 12
B= the set of all prime numbers greater than 1 but less than 29
C= the set of integers lying between -2 and 2