What is the concentration of ammonia in a solution made by dissolving 3.75 g of ammonia in 120.0 l of water?

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

Which of the following units is not an official si unit? mole liter kilogram ampere

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering