Which type of reaction is
Mg
+
O2
→
Mgol

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.

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

Which suspect most likely committed the robbery and how do you know