Chemistry, 24.08.2020 22:01 leeleelynn
Helium is an odorless, colorless gas at room temperature. It is less dense than air. That's why helium balloons float. It is a non-reactive gas, a member of the Noble gas family. Its melting point is -272.2 oC and its boiling point is -268.93 o A chemical property of Helium is?
Answers: 1
Chemistry, 21.06.2019 19:10
When will le chatelier's principle come into effect? at the beginning of a reaction, when there are only reactants when a reaction has reached chemical equilibrium when a catalyst is added to a reaction mixture when a reaction is occurring but not yet at equilibrium
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Chemistry, 21.06.2019 20:30
Hannah is writing a report on how albedo affects the global climate. she’s proofreading her passage for any factual errors. which sentence must hannah correct before submitting her report? earth receives energy from the sun. this energy drives many of the processes on earth, including its climate. some part of this energy is reflected by earth’s surface. we use the term albedo to describe the reflected energy. albedo of an object is the ratio of the reflected radiation to the total radiation reaching the object. a value of 0 means no energy is absorbed by the object, whereas a value of 1 means that all of the energy is absorbed. in this way, the albedo of an object can influence earth’s atmospheric temperature.
Answers: 1
Chemistry, 22.06.2019 17:40
How much heat is added if 0.814g of water increase in temperature by 0.351 degree c?
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Chemistry, 22.06.2019 22:30
What is the value of the standard enthalpy of formation of an element in its most stable form?
Answers: 3
Helium is an odorless, colorless gas at room temperature. It is less dense than air. That's why heli...
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