Ordinary hydrogen contains 99.30% of H atoms and 0.70% ?H atoms. Calculate the
relative atomic mass of hydrogen. Why is
tritium not found naturally in the earth's crust?​

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

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?

Word equation for k+ h2o yield koh + h2