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enyata [817]
3 years ago
7

Aluminum is a highly reactive metal that oxidizes when exposed to air. Which of these would be a good first step in balancing th

is reaction? Al + O2 → Al2O3 A) Put a coefficient of 3 on Al B) Put a coefficient of 3 on O2 C) Put a coefficient of 2 on O2 D) Put a coefficient of 3 on Al2O3
Physics
2 answers:
Mila [183]3 years ago
8 0
The answer is B. because when u add 3 on O2 and multiplied together makes 6

Helga [31]3 years ago
8 0

Answer: B) Put a coefficient of 3 on O_2

Explanation: According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balancing starts with the maximum number of atoms and thus first oxygen needs to get balanced by putting a coefficient of 3 on reactant side.

The balanced chemical equation will be:

4Al+3O_2\rightarrow 2Al_2O_3

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Jenny is traveling southward.  In order to stop, she needs a northward acceleration.


A better way to say it:

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A paleontologist estimates that when a particular rock formed, it contained 12 mg of the radioactive isotope potassium-40, which
leva [86]

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t = 2.52 billion \:years

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7 0
3 years ago
What will happen if you put a usb drive and a magnet too closely together?
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Hope this is correct and helpful

HAVE A GOOD DAY!

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