a student measures the mass of a beaker at 65.38 g. after adding 10.0 ml of gasoline to the beaker, the mass increases to 72.08 g. calculate the density if this sample of gasoline.

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

What is the area in square meters of 448 g ai foil that has a thickness of 23921 nm? the density is 2.70 g/cm

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt