Aradioactive nuclide has 53 protons and 78 neutrons. which is the symbol of this nuclide?

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?

Is a pencil falling to the floor anon contact force, a force, or a contact force