Is hot chocolate a pure substance or a mixture? Explain.

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth

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