What happens to the particles in the metal lid when it's is run under hot water. Why does this trick allow the lid to be removed more easily

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate

In salt water solution, the salt is the blank

Connect the whole numbers on the periodic table to indicate what they represent?