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Home >All Categories > Science & Mathematics >Chemistry >Open Question little Member since:September 14, 2010Total points:39 (Level 1)a. write the Keq expression
b. Calculate Keq if the concentration of N2 is [0.2 M], the concentration of O2 is [0.75M] and the concentration of NO2 is [0.5 M]Answer Question

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Home >All Categories > Science & Mathematics >Chemistry >Open Question ...... Member since:December 04, 2010Total points:2 (Level 1)How many liters of carbon monoxide at STP are needed to react with 4.8 g of oxygen gas to produce carbon dioxide?
I am a Junior in high school in chemistry, and my teacher gave us this for homework, I have no idea how to figure this out. i don't just want the answer, I wan't to know the steps.Answer Question

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(1)Hello, this is my question. how many moles of oxygen gas (O2) are needed to produce 36.04 grams of water (H2O) when reacting with excess ethane in the equation 2C2H6 + 7O2 5CO2 + 6H2O?
A. 19.0 moles of oxygen (O2)
B. 14.0 moles of oxygen (O2)
C. 2.3 moles of oxygen (O2)
D. 1.2 moles of oxygen (O2)

How many moles of water would be produced from the reaction of 3.25 moles of hydrochloric acid racting with excess calcium hydroxide?
help me please!

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