Question: Answer the following question given this paragraph: 15.11 Amines: Structures and Names LEARNING OBJECTIVES Identify the general structure for an amine. Identify the functional group for amines. Determine the structural feature that classifies amines as primary, secondary, or tertiary. Use nomenclature systems to name amines. Amines are classified according to the number of carbon atoms bonded directly to the nitrogen atom. A primary (1) amine has one alkyl (or aryl) group on the nitrogen atom, a secondary (2) amine has two, and a tertiary (3) amine has three (http://catalog. flatworldknowledge. com/bookhub/reader/2547. Q: Amines are classified according to the number of carbon atoms bonded directly to what atom? Choices: - helium - oxygen - hydrogen - nitrogen A:
Answer: nitrogen

Question: Answer the following question given this paragraph: Q: What happens when turgid cells in a nonwoody tissue push against each other? Choices: - the tissue dies - the tissue melts - the tissues merge - the tissue stiffens A:
Answer: the tissue stiffens

Question: Answer the following question given this paragraph: Chemical reactions also need energy to be activated. They require a certain amount of energy just to get started. This energy is called activation energy . For example, activation energy is needed to start a car engine. Turning the key causes a spark that activates the burning of gasoline in the engine. The combustion of gas won't occur without the spark of energy to begin the reaction. Q: What do chemical reactions need to be activated? Choices: - food - space - products - energy A:
Answer:
energy