What does H2CO3 mean on the periodic table

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

Identify the electromagnets with poles that are reversed from the electromagnet shown above

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?