What is the molar mass of carbon

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

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

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.