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A general rule for hydrocarbons is that the higher the molecular weight, the less flammable the hydrocarbon is.
Using this fact, arrange the following hydrocarbons in order of increasing flammability:
C4H8, C10H12, C2H4, C8H18
A.C2H4 = C4H8 < C10H12 < C8H18
B.C2H4 < C4H8 < C10H12 < C8H18
C.C2H4 < C4H8 < C8H18 < C10H12
D.None of the above are correct.
Determine the mean and 90% confidence interval for the average fluoride concentration in this sample.
Radioactive Radon-222 gas (222Rn) occurs naturally as a product of uranium decay. The half-life of222Rn is 3.8 days. Suppose a flask originally contained1.0×1013atoms of222Rn. How many atoms of222Rn will remain after one month (30. days)?
If an electron has a mass of 9.709x10^-31 kg, and a proton has a mass of 1.672x10^-27 kg, approximately how many electrons are required to have the same mass as one proton
It takes 53.0 to raise the temperature of an 10.2 piece of unknown metal from 13.0 to 24.0. What is the specific heat for the metal
the heat of combustion of c10h18 is -6286 kj/mol. the heat of combustion for c10h8 is -5157kj/mol.
On average, each worker has 2 batches at his/her station (working on one and with one batch waiting). What is the average throughput time for a batch?
A Be3+ ion emitts a photon with a frequency of 4.68 × 1016 Hz. If the energy of the initial state of the Be3+ ion was -3.88 × 10(-18) J, calculate the energy of the final state. Express answer in scientific notation.
a liquid unknown was found to be insolube in water and soluble in cyclohexane and alcohol, and have boiling point of 58C at 670mm Hg. what the substance? what could you do to confirm your answer?
A gas sample has an original volume of 680 ml when collected at 720 mm and 28°C. What will be the volume of the gas sample if the pressure increases to 820 mm and the temperature increases to 55°C?
Why do use slightly different amounts of acids (HCL and NaHSO4) from the amounts of base (NaOH). In what order should you mix the acid and base
a 10m solution. 20 g of solute was dissolved in 100 ml of water.what is the molecular weight of the solute used in the
A 14.0 g sample of X combines with a 26.2 g sample of Y to form the compound XY2. What is the mass of the reactants.
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