The table below shows the average temperatures of the crust, the mantle, and the outer and inner core of Earth arranged randomly: Average Temperature of Layers Unknown Layer
Average Temperature (°C) A 4,500 B 1,300 to 2,500 C 5,000 D 0 to 1,300 Which layer is most likely the mantle?

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Stage in which a typical star has completely stopped fusion

Use the periodic table to determine how many grams of oxygen would be required to react completely with 859.0 g c2h2

15) a substance used in manufacturing gasoline consists of finely divided platinum supported on an inert solid. suppose that the platinum is formed by the high temperature reaction between platinum (iv) oxide and hydrogen gas. the other product is water. a) write and balance the equation b) how many grams of hydrogen are needed to produce 1.0 g of platinum metal? c) how many moles of water are produced at the same time? how many grams? ( show work, .)