A compound with the molar mass of approximately 142 g/mol has the composition 50.7% C, 9.9% H, and 39.4% N. What is its molecular formula

Which of the following are sources of revenue for media companies? a. direct sales to producers b. advertising and subscriptions c. online purchase d. capital investments

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

How many moles are contained in 5.6 l of h2 at stp