Particals in the nucleus of an atom are its and

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

What is the percent composition of ca(oh)2? 37.7% ca, 53.0% o, and 10.3% h 45.5% ca, 38.2% o, and 16.3% h 54.0% ca, 43.0% o, and 2.7% h 64.7% ca, 27.0% o, and 8.3% h

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume