Which of the following is the correct formula for potassium bromide?
a. k2br
b. kbr2
c. kbr3
d. kbr

Agas diffuses 1/7 times faster than hydrogen gas (h2). what is the molar mass of the gas? 100.10 g/mol 98.78 g/mol 86.68 g/mol 79.98 g/mol

What is the mass of 8 moles of sodium atoms

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy