Which expression represents this word phrase?
seven less than the quotient of x and 9
a. x÷97
b. (x÷9)−7
c .x−79
d. (9÷x)−7

Iwll give extra points to who gets this for ! what type of reaction is this? ?

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.

What term describes technology that operates on an atomic level