La presión atmosférica en la superficie de Marte es aproximadamente 1/150 de la presión estándar en la Tierra, o 0,00667 atm. Exprese esta presión en (a) milímetros de mercurio (mm Hg) y (b) kilopascales (kPa)​

How many joules of heat are absorbed to raise the temperature of 650 grams of water from 5.00c to it's boiling point, 100c

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.