Two identical containers hold an equal number of particles of different gases. The gases have the same kinetic energy but not the same molar mass. What be inferred about the relative velocities of the gases' particles?

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

Avariable that is not being directly tested during an experiment should be