5. 2.0 liters of hydrogen is held in a rigid container at STP. If the temperature is dropped to –65.0°C, what is the resulting pressure in mmHg?

Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-