Why do lithium (li) and sodium (na) have similar properties? a. they are in the same period. b. they are in the same group. c. they have the same number of electron shells. d. there names both end with "ium"

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

What are the primary responsibilities of a chemical engineer involved in "r& d"? develop large scale manufacturing operations discover new products and processes training of new chemists determine products needed by consumers