Decide which element probably forms a compound with oxygen that has a chemical formula most and least similar to the chemical formula of the compound formed by oxygen and aluminum. Comparing chemical formula of compound formed with oxygen: selenium thallium magnesium strontium most similar to aluminum least similar to aluminum

Which of the following electromagnetic waves can create ions?

What is the mass of 0.46 mol of mgcl2

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.