Agaseous compound x contains boron and hydrogen only. under 1 atm pressure and at 276k the volume of 1g of the compound x vas 0.82dm3.the relative atomic masses of boron and hydrogen are respectively 10.2 and 1.00,what is the formula of x?

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.

How are the terms group and period used on the periodic table

Kp is the equilibrium constant for dissociation of the propionic acid dimer. what is the sign of the slope for a plot of the natural logarithm of kp vs. inverse temperature for this reaction?