The sunlight shines directly on Cassidy's desk but not on Raaqim's desk. Both Cassidy and Raaquim are near the window, yet Cassidy feels much warmer than Raaquim. Why?

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Asubstance is held in an open container. its particles move past one another at random speeds but do not leave the container. heat is removed from the system, and the particles slow down. when enough heat is removed, the particles no longer have enough speed to overcome the weak attractive forces between them. when this happens, the substance enters its solid state. the process described above is known as .

How many grams of sodium chloride are in 250ml of a 2.5m naci solution