7. An unknown hydrocarbon, a compound containing only carbon and hydrogen, is found to have a molar mass of 114.26 g/mol. If one mole of the compound
contains 18.17 g of hydrogen, what is its molecular compound?

What substance has a mass of 9.5g and volume of 2.1cm^3

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)