Na-23 has 12 neutrons. What is its atomic number?
O A. 11
O B. 12
O c. 23
O D. 34

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

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?

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols