Scientist who discovered the atomic nucleus is dalton b. thomson chadwick d. rutherford

Apure solvent has a vapor pressure the vapor pressure of a solution. a. equal to b. lower than c. higher than

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Name the element in group 17, period 2. (periodic table)