Robert is measuring a filter paper for their chemistry class. Taking significant digits and estimating rules into account, what is the best measurement of this paper? Feel free to zoom in so you can see this clearly. A. 1.2 cm

B. 1.3 cm

C. 1.20 cm

D. 1.125 cm

E. 1.25 cm

How many moles of gas are present if p=11 atm, v=12l, t=185k?

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

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?