Calculate the moles of nacl if you start with 72.70 grams of nacl.

Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (use the periodic table as necessary.) group most likely ionic charge # of valence electrons i +1 ii +2 iii +3 iv +4 or -4 v -3 vi -2 vii -1 viii 0

What is the main reason why some developing countries fear the increase the free trade policies around the world?

All motion is caused by force? true or false