Balancing the following equations
1 answer:
Everything in #11 question is already balanced, just put a one in front of the elements.
For question 12 you have to put a 3 in front of the first Fe to balance out the number of Fe’s in the equation, then to balance out oxygen, you have to put a 4 in front of H2O which gives you 4 oxygen but 8 hydrogen. To fix this you put a 4 in front of the 2 hydrogen atoms at the end of the equation to get 8 hydrogen atoms.
For question 12 you have to put a 3 in front of the first Fe to balance out the number of Fe’s in the equation, then to balance out oxygen, you have to put a 4 in front of H2O which gives you 4 oxygen but 8 hydrogen. To fix this you put a 4 in front of the 2 hydrogen atoms at the end of the equation to get 8 hydrogen atoms.
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Answer:
The last answer; 12.
Step-by-step explanation:
In order to solve this, use substitution. Since it gives you an equation for y, substitute that equation in the other formula as y. This will give you:
Then simplify:
Since 6x - 6x cancels out, you are left with 12.