A 55-g sample of a gaseous fuel mixture contains 0.43 mole fraction propane; the remainder of the mixture is butane. What are the masses of propane and butane in the sample?

Give one chemical and physical property of wood.

What determines whether an object will scatter or reflect light

30. how many grams of boric acid, b (oh) 3 (fm 61.83), should be used to make 2.00 l of 0.050 0 m solution? what kind of fl ask is used to prepare this solution?

What does oil have to do with fat

How many moles are there in 3.612 X 10^24 molecules of phosgene (COCL2)

What does pH measure? number of hydrogen atoms in an acid number of hydroxide atoms in a base concentration of hydrogen ions in solution concentration of hydroxide ions in solution

Based on charles's law, which of the following statements is true for an ideal has at a constant pressure and mole amount? A. The number of collisions is independent of volume B. The number of collisions decreases with increase in volume C.

50. mL of water is initially 70. k and cooled to 25. k. What is the thermal energy?

Which of the following statements is true about both nuclear fusion and nuclear fission? They occur in the sun. Heavy atoms are split. Two light nuclei combine. Some mass changes into energy.

What does the name iron (II) in a compound indicate about the cation? A an 11 + charge B a 2 - charge C a 2 + charge