A chemist measures the amount of iodine solid produced during an experiment. He finds that 285. g of iodine solid is produced. Calculate the number of moles of iodine solid produced.

An atom's configuration based on its number of electrons ends at 3p4. another atom has seven more electrons. starting at 3p, what is the remaining configuration? 3p63d34s2 3p43d54s2 3p64s23d3 3p44s23d

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

All motion is caused by force? true or false