Hi, I don't know what they mean with 'CnH2n+2'. If there are 9 C -atoms what will the rest of the formula be/how am I supposed to write down the formula?

What are the major products produced in the combustion of c10h22 under the following conditions? write balanced chemical equations for each. a. an excess of oxygen b. a slightly limited oxygen supply c. a very limited supply of oxygen d. the compound is burned in air

What is the molarity of 60.0 grams of naoh dissolved in 750 milliliters of water? a) 1.1 m b) 2.0 m c) 12 m d) 75 m

What is the percent by mass of oxygen in fe2o3