Abromine atom in an excited state could have an electron configuration of(1)2-8-18-6 (2) 2-8-18-7 (3) 2-8-17-7 (4) 2-8-17-8

Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m

Which of the following has expanded our knowledge of the universe beyond our solar system the most? a. manned space travel b. the hubble space telescope c. the pioneer and voyager missions d. the international space station

How do chemical equations demonstrate conservation of mass