Which Chemical Equation Is Correctly Balanced
P: Which chemical equation is properly balanced? 3
1.H2 (g) + O2 (g)> H2O (g)
2.N2 (g) + H2 (g)> NH3 (g)
3.2 NaCl (s)> Na (s) + Cl2 (g)
4.2 KCl (s)> 2 K (s) + Cl2 (g)
Why Answer 4?
The correct answer is 4 because you have 2 K and 2 Cl towards the reaction. Uct side has 2K and 2 Cl. The reaction side and the right side are balanced.
Which Chemical Equation Is Correctly Balanced
Which Chemical Equation Is Correctly Balanced
Cice 4 is correct because the coefficients of 2 vs. KCl are divided between K + and Cl, each forming two. Note that the coefficients are distributed to all the elements, but signs like 2 in O2 or H2O belong only to the element before the trace.
Count the number of atoms on each side.
In number 4, there are 2K and 2Cl atoms on the left and 2K and 2Cl atoms on the right.
Since the number of atoms of each type is the same for left and right, the reaction is balanced.
Count the sum of each element from each side, if money is found it is balanced. The answer is 4.2K left 2 right 2 Cl left and right
Since # 4 is 2K and 2Cl, a coefficient of 2 lets 2 go to both solutions.
The easiest answer because this is the only equation with the same number of elements on either side of the arrow.
C6H12O6 + 9O2> 6CO2 + 6H2O 6 carbon atom in both factors, good. 12 hydrogen atoms on both factors, very good. 24 oxygen in the left factor, 18 oxygen in the right factor, not good. C6H12O6 + 6O2> 6CO2 + 6H2O reduces the left factor from 9O2 to 6O2, it is now balanced.
Because the coefficients of kcl and k are two and the index of cl is two (which means you have two k and cl ... which makes two kcl)
