6. Aluminum oxide forms when aluminum reacts with oxygen. Calculate the mass (in grams) of aluminum oxide that is produced when a mixture of 82.49 g of aluminum and 117 g of oxygen is allowed to react.

What’s the scientific notation for the number 6,840,000,000

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

What is the typical rotational frequency frot for a molecule like n2 at room temperature (25∘c)? assume that d for this molecule is 1å=10−10m. take the total mass of an n2 molecule to be mn2=4.65×10−26kg. you will need to account for rotations around two axes (not just one) to find the correct frequency. express frot numerically in hertz, to three significant figures.