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Gaseous carbon monoxide reacts with hydrogen gas to form gaseous methane (CH4) and liquid water. Write a balanced chemical equation with all phases identified.
The area of the head of an average flat headed straight pin is 3.50*10(-4) inches squared. the atomic radius for the element neon is 7.0*10(1) pico meters. if you could line up a row of atoms how many neon atoms can fit across the diameter of the ..
Calculate the VOLUME (mL) of liquid H2O formed if the reaction goes to completion and you condense the water vapor.
A solution contains 6.25g calcium nitrate [Ca(NO3)2]2 in 430.0g of water. Express the concentration of calcium nitrate as mole fraction and molality.
Calculate the binding energy per nucleon (in MeV) for P-32 (atomic mass = 31.9739 u). mass H = 1.007825 u and mass n = 1.008665 u.
Calculate the maximum theoretical percent recovery from the recrystallization of 1.00 g of benzoic acid from 15 mL of water, assuming the solution is filtered at 25 degrees C.
What is the age of a rock whose 40Ar /40Kratio is 1.25? The half-life of 40 K is 1.28 times 10^9years Formulas ln(N)t/(N)o =-k+ + 1/2 =0.693 /k
If the coal is burned in a power plant that uses 1800 tons of coal per day, what mass of calcium oxide is required daily to eliminate the sulfur dioxide?
a gaseous mixture of o2 and kr has a density of 1.184 gl at 385 torr and 300. k. what is the mole percent o2 in the
Calculate the lattice energy for the hypothetical ionic compound M2X from the information given below.
If the photosynthesis portion of the carbon cycle represents the world's capacity for generating biofuels (in addition to supplying food) what percentage of the world's biomass production would be needed to displace the 6 Gt/yr fossil fuel usage
Three and one - third mol es of Cl2 (g) are now added , keeping P and T constant. Calculate the number of moles of Cl2 present when equilibrium is reestablished. Obtain also the ratio of the final to the original total volume.
What shape do you expect for molecules that meet the following descriptions. (a) A central atom with two lone pairs and three bonds to other atoms (b) A central atom with two lone pairs and two bonds to other atoms
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