Chemistry, 28.04.2021 04:00 nathangirnet
A child’s lungs can hold 2.20 L of air. How many grams of air do her lungs hold at a pressure of 102 kPa and a body temperature of 37oC? Use a molar mass of 29 g/mol for air which is about 20% O2 and 80% N2
Answers: 3
Chemistry, 22.06.2019 06:40
Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.
Answers: 3
Chemistry, 22.06.2019 12:00
Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?
Answers: 2
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Nan element’s square on the periodic table, the number with the greatest numerical value represents the
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A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?
Answers: 3
A child’s lungs can hold 2.20 L of air. How many grams of air do her lungs hold at a pressure of 102...
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