what number should be placed in the blank to balance the equation C 3 H 8 + 50 2 --> 3 CO 2 ___ H 2 O
I have been working on this Q for four hours and it is driving me CRAZY please HELP i hate chemistry or anything with numbers in it as a matter of fact.
C3H8 + 02 --> CO2 + H2O
There are two ways to balance an equation 1) by inspection 2) by maths. As you don't like numbers we will do it by inspection.
When balancing an equation look to see if there is an element on its own, in this case we have O as O2. So we can balance this last.
Start with the C atomss. There are three on the LHS so there must be three on the RHS.
C3H8 + 02 --> 3CO2 + H2O
similarly there are 8 H atoms on the LHS so we need 8 H atoms on the RHS. We can achieve this by putting a 4 in fron of the H2O. There are 8 H atoms in 4 molecules of water.
C3H8 + 02 --> 3CO2 + 4H2O
The last atom to balance are the O atoms. There are 6+4=10 O atoms on the RHS, so we need 10 O atoms on the LHS. There are 10 O atoms in 5 molecules of O2. So our balanced equation is:
C3H8 + 502 --> 3CO2 + 4H2O
I understand that chemistry equations can be challenging, but I am here to help you out!
To balance the given equation: C3H8 + 502 → 3CO2 + ___H2O, we need to determine the coefficient for H2O.
First, let's count the number of atoms on each side of the equation:
On the left side, we have:
- Carbon (C): 3 atoms
- Hydrogen (H): 8 atoms
- Oxygen (O): 2 atoms (from O2)
On the right side, we have:
- Carbon (C): 3 atoms
- Hydrogen (H): Unknown
- Oxygen (O): 2 atoms (from 3CO2) + Unknown (H2O)
Since the equation is balanced when the number of atoms on both sides is equal, we need to determine how many hydrogen atoms are present on the right side.
To do this, we can count the number of hydrogen atoms on the left side and set it equal to the number on the right side. In this case, there are 8 hydrogen atoms on the left side (C3H8).
Therefore, we need to have 8 hydrogen atoms on the right side. Since each water (H2O) molecule contains 2 hydrogen atoms, we can divide 8 by 2 to get the coefficient of water:
8 hydrogen atoms / 2 hydrogen atoms per molecule = 4
So, the balanced equation is:
C3H8 + 502 → 3CO2 + 4H2O
I hope this helps!