Explain what is meant by the atomic mass unit (amu) ?

A quantity of gas has a volume if 400.0 ml when confined under a pressure of 600.0mm Hg. What will be the new volume of the gas if the pressure is reduced to 200.0 mm Hg at constant temperature

What is the molar ratio between fe and h2o

Can sound travel in places where there is no matter?

Which of the following identifies the number and location of protons in a lithium atom

1. Which of the following is not an example of a change that causes acceleration? A decrease in speed 20% B increase in time 80% C change of direction Dincrease in speed

How can we use the mole to convert between the mass and the volume of a substance?

What is the definition of convection a. the process in which energy is released by molecules breaking apart b. the process in which energy is released by molecules breaking apart c. transfer of heat between two objects that are touching d.

Describe how space exploration has changed the economy and culture, and include one specific example.

If a sample containing 2.50 ml of nitroglycerin (density=1.592g/ml) is detonated, how many total moles of gas are produced?

A 5.00g of X, the product of organic synthesis is obtained in a 1.0 dm3 aqueous solution. Calculate the mass of X that can be extracted from the aqueous solution by a 50cm3 of ethoxy ethane. (KD (X) = 40.