What of these is a compound?

What is the chemical agent ninhydin used for? Why urea is inorganic compound? What or where exactly is Legazpi? Does 16 oz equal 1pd? What does it mean to sends his regards? How many amps is 1000 coulombs? Are brick and CMU's shown on the floor plan with the same symbol? When did suttons seeds start in reading? how do you round 163.8 To the nearest cubic​ centimeter? The process by which atomic nuclei combine together to form a new element is called .? Which type of bonding explains why methanol has a much higher boiling point than methane? What categories or patterns do you see in the significant simitarities and differences of fujita scale and saffir-Simpson? What ocean basin is located almost entre rly in the southern hemisphere? Roles played by the components of ecosystem? What do Lewis dot formulas for atoms show? Is devils tower natural or man made? Which is stronger muscles or fats? How does smell impacts perception? What ecosystem do oak trees belong to? Is lalang a land plant?