What is the concentration of cl– ions that results from mixing 0.140 l of 0.25 m nh4cl with 0.380 l of 0.75 m cacl2?

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

How do you lengthen a pattern piece? (family and consumer science, sewing)

Why are people not able to skip a dive to the deepest part of the ocean