How would a 2+ ion form from an atom? An atom gains 2 protons

An atom loses 2 protons

An atom loses 2 electrons

An atom gains 2 electrons

Which of these reactions are redox reactions? check all that apply.cd + hcl → cdcl2  + h2cucl2  + na2s → 2nacl + cuscaco3  → cao + co2          2zns + 3o2  → 2zno + 2so2          ch4  + 2o2  → co2  + 2h2o

Gymnast always perform on padded mats. how does the mats protect the gymnast

Why is nh3 classified as a polar molecule