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Q: Which conversion factor do you use first to calculate the number of grams of CO2 produced by the reaction of 50.6 g of CH4 with O2? The equation for the complete combustion of methane is: CH4(g) +
2O2(g) ? CO2(g) + 2H2O(l)
A: The answer is "16.0 g CH4 over 1 mol CH4" You need to convert to moles because the grams cannot be compared directly based upon the reaction, but you know that for every mole of CH4 used, one mole of CO2 is produced. [ Converting CH4 to moles tells you how many moles of CO2 you produce, which can be converted to a mass. ]
Original conversation
User: Which conversion factor do you use first to calculate the number of grams of CO2 produced by the reaction of 50.6 g of CH4 with O2? The equation for the complete combustion of methane is: CH4(g) + 2O2(g) ? CO2(g) + 2H2O(l)

Weegy: The answer is "16.0 g CH4 over 1 mol CH4" You need to convert to moles because the grams cannot be compared directly based upon the reaction, but you know that for every mole of CH4 used, one mole of CO2 is produced. [ Converting CH4 to moles tells you how many moles of CO2 you produce, which can be converted to a mass. ]
bongche|Points 3864|

User: what is conserved in this reaction? h2 g cl2 g ? 2hcl g

Weegy: You need to find a table in your book that lists g,h,and s for each of these gases. I'd write them out above each gas, and then work it like a math problem. If s for HCL is 5, then the total s is 2*5 for two moles. [ If s for H2 is 1 and s for Cl2 is 3, then the delta s is 5-(3+1) = 1 The same goes for g and h. Look at your answers for a to determine part b. If the delta s is positive (molecules becoming more disordered) and heat is released (positive delta h) then the reaction shifts toward the products, to make 2 moles of HCL from 1 mole each of the reactants. ]
hsmily|Points 25|

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Which sentence has a compound verb? A. Your brain helps you to take a test. B. Your brain has 100 billion nerve cells, which are called neurons. C. Your complex brain thinks and controls your breathing at the same time. D. Your brain, a very complicated organ, has many functions.
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Updated 344 days ago|11/11/2016 6:07:00 AM
The sentence with a compound verb is: Your complex brain thinks and controls your breathing at the same time.
Added 344 days ago|11/11/2016 6:07:00 AM
Confirmed by jeifunk [11/11/2016 9:21:22 AM]
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Updated 30 days ago|9/20/2017 2:17:52 PM

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