Given the balanced equation:

2C + 3H2==> C2H6

What is the total number of moles of C that must completely react to produce 2.0 moles of C2H6?

(1) 1.0 mol (3) 3.0 mol

(2) 2.0 mol (4) 4.0 mol

Oxygen, sulfur, and tungsten are all examples of what type of matter? compound element heterogeneous mixture solution

When water evaporates from a puddle on the street where does it go?

Carbon disulfide, CS2, can be made from coke, C (s), and sulfur dioxide, SO2 (g). C (s) + SO2 (g) à CS2 (s) + CO2 (g) If the actual yield of CS2 is 86.0% of the theoretical yield, what mass of coke is needed to produce 950. grams of CS2?

Atomic mass of 14.01 amu

If the pressure of gas is 50.65kpa, what is the pressure in atm?

Which compound conducts electricity only in the molten state? A. sodium bromide B. calcium hydroxide C. barium sulfate D. magnesium sulfate

What is going to happen to a balloon filled with helium that is left in a car over night when the temperature drops approximately 20 degrees

Members of which group easily lose an electron to form a 1 cation? A. halogens B. alkaline earth metals C. noble gases D. alkali metals

How to convert 0.000984 into scientific notation?

What is the total pressure in a 6.00-l flask which contains 0.127 mol of h2 (g) and 0.288 mol of n2 (g) at 20.0°c?