Are all microscopic the same size?

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

Main expenses you plan on making payments on a new car too. you want to spend 15% of your monthly net pay on the car payment, insurance, registration, and taxes combined. what is your monthly car allowance? $149.46 $298.91 $448.37 $597.83

What is the molar mass of a gas that has density of 2.054 g/l