If 2. 5 moles of h2o are produced how many moles of hydrogen gas must be used.
1 answer:
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Answer:
A
Explanation:
Let's solve the equation to be written as y in terms of x by adding y to and subtracting 12 from both sides:
3x - y = 12
3x - 12 = y
Now, replace y in the other expression that we want to find () with this expression 3x - 12:
Now, we also know that 8 = 2³, so substitute 2³ for 8 in the expression:
Remember that when dividing powers with the same base (in this case, the common base is 2), the result will be a single power whose exponent is the difference of the other two powers. Here, then we have:
Thus, the answer is A.