What is the mass of 15.0l of nh3 at 27ºc and 900 mmhg?

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness

Which is true about metals used for jewelry, such as platinum and gold? a. they have low flammability. b. they have low reactivity. c. they have high flammability. d. they have high reactivity.