Three moles of carbon dioxide are produced when one mole of propane gas is burned. How many moles of carbon dioxide gas will be produced if 30 moles of propane are burned?

Which of the following is not a characteristic of a hydrogen bond? 1. it is responsible for the unusual physical properties of water. 2. it is weaker than a covalent bond. 3. it is stronger than other dipole-dipole interactions. 4. it can occur when hydrogen is covalently bound to very electronegative elements liks f, cl, br and i.