Chemistry, 03.07.2019 04:30 rocksquad7917
Which of the following is an example of a physical change? a) ice melting b) rust on a nail c) both d) neither
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Chemistry, 22.06.2019 10:50
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
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Chemistry, 22.06.2019 13:50
How does the motion of particles in a gas change as the gas cools
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Chemistry, 22.06.2019 16:00
The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride
Answers: 1
Which of the following is an example of a physical change? a) ice melting b) rust on a nail c) b...
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