The outer energy level of a noble gas is Select one:
a. empty.
b. filled.
c. half-filled.

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

What type of chemical reaction occurs between silver nitrate (agno3) and copper (cu)? the equation i was given is 2agno3 + cu —> 2ag+ cu(no3)2.

Which of the following is a pure substance? airbloodcopperwood