Viết các phương trình phản ứng xảy ra (nếu có) khi cho các chất sau CH3CHO, CH3COCH3 lần lượt tác dụng với: Ag2O/NH3, CH3MgBr, NaHSO3, LiAlH4, Cu(OH)2.

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible?

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

Look at the bean data from days 4–6. use these data to explain how natural selection changed the number of dark red walking beans over time. writing part