The equation is already balanced.
The ending substance that is asked for in the problem is C= 5.707 g of H2.
A balanced equation can be regarded as the equation used for chemical reaction where the number of atoms for each element that is present in that reaction and the total charge are equal for both the reactants and the products.
In making the calculation:
(1 mol of C) will give us (1 mol of H2)
(12.01 g of C) will give us (2.016 grams of H2)
Then we can find the Ratio as ( 2.016 g of H2 / 12.01 g of C)
If we simplify, then C= 5.707 g of H2
Therefore , the ending substance that is asked for in the problem is C= 5.707 g of H2.
Learn more about Atomic mass at:
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CHECK THE COMPLETE QUESTION BELOW:
How many grams of H2 would be formed if 34 grams of carbon reacted with an unlimited amount of H2O? The reaction is:
C + H2O CO + H2
1) Is this equation balanced?
2) What is the starting substance?
3) What is the ending substance that is asked for in the problem?
Additional info: The atomic mass of C is 12.01 g/mole. The atomic mass of H2 is 2.016 g/mole.
