Trộn 20 ml đ HCl 0,05M với 20 ml đ H2S04 0,075M thu được đ có pH bằng

What is the maximum number of electrons that an atomic orbital can contain?

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.