If each water molecule contains 2 hydrogen atoms, how many total oxygen atoms in 20 water molecules?

1 answer:

7 0

The answer is 10 because if their is 20 molecules of hydrogen then their is one oxygen molecule for each which results in 20 divided by two which equals 10

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How many gallons of water in lake lewisville?

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1.422 × 10^11 us liquid gallons

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2 years ago

Given the balanced equation representing a reaction:

sleet_krkn [62]

4Al(s) + 3O2(g) --> 2Al2O3(s) This is the balanced.
From the equation:

4 moles of Al required 3 moles of O2 to produce 2 moles of Al2O3

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4.5 moles of O2 reacted with (4/3 *4.5) moles of Al to produce (2/3*4.5) moles of Al2O3

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2 years ago

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lana [24]

Answer:

$Na3PO4 + 3AgNO3 -------> Ag3PO4 + 3NaNO3$

In which [Ag+] in negligibly small and the concentration of each reactant is 1.0 M

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Explanation:

Ag+ is removed from the solution just like PO43-, so there are just 2 possible answers at this point: a or b. Then we can notice that Na3PO4 releases 3 moles of Na+ and just 1 mole of NO3-

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(0.1)(1)(3)= 0.3 mol Na+

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so PO43- < NO3- < Na+

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Explanation:

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The thing that it is called is it is called the atomic number of the thing

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3 years ago

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