If a 1.6 g sample of a sand/salt mixture is found to have 0.65 g of sand, what is the percent sand of the mixture? *
246.2%
40.6%
2.46%
0.411%

The diagram below shows the movement of particles. what does this piece of evidence best support? the collision theory the maxwell-boltzmann distribution the effect of pressure on reaction rates the effect of temperature on reaction rates

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .

How are the terms group and period used on the periodic table