How much heat is lost when a 692 g piece of aluminum cool from 176°C to 85°C? The specific heat of aluminum is 0.125 cal/g°C.

List four observations that indicate that a chemical reaction may be taking place

At a temperature of 393 k, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478 k

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