Type the correct answer in the box. the pressure inside a tire is measured as 28.0 . what is its pressure in ? 1 pound = 4.45 newtons 1 inch2 = 6.45 centimeters2 express the answer to the correct number of significant figures. the pressure is .

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous

When the mercury level in a barometer decreases that atmospheric pressure has