Chemistry, 16.04.2020 00:38 desikayla2013
A weather balloon contains 59.5 L of helium at sea level, where the atmospheric pressure is 101.3 kPa. The balloon
is released from a 4000-m mountaintop where the pressure is 61.7 kPa. What is the volume of the balloon when it is
released?
Answers: 2
Chemistry, 23.06.2019 04:31
Use the drop-down menus to label each of the following changes p for physical change and c for chemical change. the substance changes to a new substance. the original substance can be recovered. the color changes. gas is produced and given off. the substance changes size, shape, or volume.
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Which of the following is a solution a- brewed coffee b-tomato juice c- ranch salad dressing d- muddy water
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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, .)
Answers: 1
A weather balloon contains 59.5 L of helium at sea level, where the atmospheric pressure is 101.3 kP...
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