What would the mass be of 7.19 x 1022 molecules of dinitrogen monoxide (N2O)?

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?