A chef takes four pans from different parts of her kitchen and puts them in two stacks. The diagram above shows the pans before they touch each other. Use the information in the diagram to answer the question. After the pans have been touching for a while, which of the two bottom pans will be cooler, and why?

How many grams of n2h4 will be consumed by 23 g of n2o4

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.