An oxygen tank is filled with oxygen gas and is ready to be delivered to a patient. At 25°C, the pressure in the tank is 205 kPa and volume of the tank is 3 L. How many moles of oxygen gas in the tank
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Iknow #2 is d. i just need to know why

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

Given the following reaction: c3h8+5o2=3co2+4h20 how many grams of co2 will be produced 7 g of c3h8 and 98 g of o2