At stp, which sample contains the same number of molecules as 11.2 liters of co2(g) at stp?
(1) 5.6 l of no2(g) (3) 11.2 l of n2(g)
(2) 7.5 l of h2(g) (4) 22.4 l of co(g)

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

Which of the following describes a situation where competition between producers exists

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt