Name the changes of state where particles become more ordered. why?

6. If 0.500 mol NaN3 react, what mass in grams of nitrogen will result? 2 NaN3 → 2 Na + 3 N2 Show your work

If 0.0203 g of a gas dissolves in 1.39 l of water at 1.02 atmospheres at what pressure (in atm) would you be able to dissolve 0.146 g in the same amount of water?

Convert 255 centimeters to meters, millimeters, and kilometers.

The pharmacy receives a prescription for 50 grams of 5% salicylic acid ointment. the pharmacy has a 30% salicylic acid ointment and petrolatum available.

The mass of an astronaut in space will be: c the same as on earth greater than on earth less than on earth

What is the mass number of an atom which is made up of 27 protons, 33 neutrons and 27 electrons?

If you are trying to reduce echoes in a room, what should you add to the room?

The molar mass of iron (Fe) is 55.8 g/mol. what is the mass in grams of 2.25 moles of iron?

Select the compound that is not organic. sucrose carbon dioxide methane urea

You sealed an Erlenmeyer flask that was determined to have a volume of 272.2 mL with a stopper. The density of air at 25°C is 0.001185 g/mL. Air has an effective molar mass of 28.96 g/mol. What amount of air was sealed in the flask?