Hydrocarbons are organic compounds composed entirely of hydrogen and carbon. A 0. 1647 g sample of a pure hydrocarbon was burned in a combustion apparatus to produce 0. 4931 g of CO2 and 0. 2691 g of water. Determine the empirical formula.

Imagine that you’re getting ready to move to a new city. when people move, they are influenced by push factors and pull factors, and you have many reasons for your move. which of the following factors is an example of a pull factor? a. wanting to move because you’ve found a great new school somewhere new b. needing to move because there are not enough resources in your old hometown c. being forced to move because your old home is gone d. having to move because there are no jobs in your current hometown

Omg imgonnafailnfiedkla use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration.

Calculate the number of molecules present in 0.750 mol of mgo.