Which phrase best describes the mass movement of particles? sediment flowing down a slope
sediment collecting on an existing surface
transporting materials to a new location
breaking materials into smaller particles

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?

Which of the following warnings would an agricultural chemist tell a farmer who wants to recycle his or her own ammonia? recycling ammonia is a difficult process that sometimes takes weeks. recycling ammonia requires a degree in biochemistry or a related field. recycling ammonia can be harmful because it is highly flammable and toxic. recycling ammonia costs too much money considering the price of the necessary chemicals.