If 0.251moles of H2O gas are produced, how many liters of oxygen gas was used?
___H2(g) + ___O2(g) ___H2O(g)

(use equation above) If 5.50liters of hydrogen is used to make water, how many grams of oxygen should be used also?

o.251 prduces 45.7L of oxogen

Explanation:

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we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

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