PLEASE HELP ASAP
the problems are in the picture

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

How many atoms are there in 5.70 mol of mg

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