According to the law of conservation of mass, if 6.1 grams of hydrogen gas reacts with oxygen gas to produce 54.1 grams of water, how many grams of oxygen gas were used?​

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.

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?