Convert the mass of na2co3 to moles, given its molar mass (mm) of 105.989 g/mol

Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star

Which statements are true about electrolysis? check all that apply. electrolysis requires an acid be present. electrolysis is described by two half-reactions. electrolysis is not an industrial process. electrolysis results in commercially valuable products. electrolysis involves the transfer of electrons. reduction results in the loss of electrons. oxidation results in the loss of electrons.

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge