What is the atomic number of the elements that the student used to identify the element

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159

Using the periodic table complete the table to describe each atom type in your answers

Which statements correctly match a chemical name with its formula? use the list of polyatomic ions and the periodic table to you answer. the chemical formula for ammonium carbonate is nh4hco3. the chemical formula for ammonium hypochlorite is nh4clo. the chemical formula for ammonium nitrate is nh4no3. the chemical formula for ammonium phosphate is nh4(po4)3. the chemical formula for ammonium sulfate is (nh4)2so3.