What is the number of moles of H2O produced if you combust 0.5 mole of CH4 according to the following balanced equation?
CH4 + 2 O2 ? CO2 + 2 H2O
A) 2 moles
B) 4 moles
C) 6 moles
D) 8 moles
E) 1 mole
Answer: E
You might also like to view...
Suppose we imagine the Sun to be about the size of a grapefruit (about 10 cm across). How far away are the nearest stars (the three stars of Alpha Centauri)?
A) 2.5 miles B) 2,500 miles C) 250 miles D) the length of a football field E) 25,000 miles
There is a 5.0 ?C charge at each of 3 corners of a square (each side 70. mm long). What is the force on +6.0 ?C placed at the center of the square?
What will be an ideal response?
Where are elements heavier than iron primarily produced?
a. Brown dwarfs b. White dwarfs c. Supergiants d. Supernovae
RC Circuits: A charged capacitor is connected in series with a resistor and an open switch. At time t = 0 s, the switch is closed. Which of the graphs below best describes the current I through the resistor as a function of time t?
A. A B. B C. C D. D E. E