How much does 9.8 liters of ammonia (nh3) weigh at standard temperature and pressure (273 k and 100 kpa)?

How many moles of bromine are needed to produce 3.23 moles of potassium bromide

Which of these describes how heat is transferred by convection* a. sunlight travels through space without the aid of fluids or solids. b. warm air rises and takes the heat with it, eventually, it cools and sinks c. air at the equator rises and sinks at the poles. d. air molecules touch the warm ground, heating them up *not conduction

Organisms are classified as producer or consumers according to the way they ?