Answer:
The correct answer is propane.
Explanation:
The movement of chemicals follows numerous standards, which indicate that each trailer must contain an ID number identifying the chemical being moved. This is necessary because before possible accidents and leaks we must know the measures to be taken before a leak.
Have a nice day!
The answer above is correct (I took a test on this)
My Choice will be the sample C with a coefficient of absorption 62 % and the reason is that the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest. Because this sample has the highest percentage of the coefficient of absorption than the other samples, As the sound Absorption coefficient is a part of the sound energy that absorbed by a material.And Its value varies with the angles of incident and frequency. So sample C is the best to be used as a soundproof room.
Since the equation is balanced we can use the molar ratios to jump between amounts of substances.
CH4 + 2O2 ---> CO2 + 2 H2O
1.You can use a molar ratio to convert between mols methane to mols CO2:
4.70×10−3 mol CH4 X (1 CO2 / 1 CH4) = 4.7x10^-3 mol CO2 X (44g/1mol) = .2068g CO2
2. You can do the same technique with the water.
4.70×10−3 mol CH4 X (2 H2O / 1 CH4) = .0094 mol H2O X (18g/1mol) = .1692g H2O
3. You can do the same technique with the O2.
4.70×10−3 mol CH4 X (2 O2 / 1 CH4) = .0094 mol O2 X (32g/1mol) = .3008g O2
