Diferencia entre el modelo atómico de Rutherford y el de sommerfeld necesito esto plisss me ayudan

Consider the following system at equilibrium. caco3(s) ca2+(aq) + co32–(aq) the addition of which compound will cause a shift in equilibrium because of a common ion effect? ccl4 co2 cuso4 na2co3

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

Anurse used a 0.02-mg/l solution of disinfection to clean a patients wound. what is the concentration of the solution expressed as a percentage?