Scientists in a lab are working with two different samples of the element mercury. They know that the different samples are different isotopes.

How much energy is made when a pice of wood burns. how do you know

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

When the mercury level in a barometer decreases that atmospheric pressure has