Ir pressure is greatest near the surface of the Earth in the . Question 7 options:

Thermosphere

Mesosphere

Troposhere

Exosphere

The density of an unknown gas at 98°c and 740 mmhg is 2.50 g/l. what is the molar mass of the gas with work showed?

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution