Does age matter because the girl I like is two years younger than me?​

How are elements arranged in a periodic table

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