What is the total pressure in a can that contains 2.5kPa CO2 , 0.5kPa O2 , and 1.3kPa N2

Adrop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?

Which atom or ion is the largest? 0 a. 0 0 0 0 e. li

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer