Geoffrey places a 9-gram piece of an unknown substance into a graduated cylinder that is filled with 12 mL of water, and the water rises from the 12 mL line to the 15 mL line. What is the density of the unknown substance? A) 108 g/mL
B) 3 g/mL
C) 0.8 g/mL
D) 0.6 mL

What type of solution is formed if 10 g of kclo3 are dissolved in 100g of water at 30

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm