compound has the following percent Composition 28.03% mg, 21.60% Si 1.16% H and 49.21% 0 with a molar mass of 520.8 glmol Determine the emperical and molecular formula of the compound (So=28, mg=24, H=1,0=16)​

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.

What is the independent variable in this investigation? mass volume sample number substance density

Which description best characterizes the motion of particles in a solid?