Balance the following:
N2(g)+Br2(s)>NBr3(s)

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

Calculate the number of moles of ethane in 100 grams

Describing intermolecular forces use the drop down menus to match the type of intermolecular force to its name dipole dipole interactions dipole induced dipole interactions london dispersion forces hydrogen bond van der waals forces done