Chemistry, 23.06.2019 20:30 hcpscyruscm
Iron(iii) ions, fe3+ , react with thiocyanate ions, scn- , in a reversible reaction to form a red solution. which changes to the equilibrium will make the solution go red? i. increasing the temperature ii. adding fecl3 iii. adding a catalyst a. i and ii only b. i and iii only c. ii and iii only d. i, ii and iii
Answers: 2
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
Answers: 1
Chemistry, 22.06.2019 13:00
The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false
Answers: 2
Chemistry, 23.06.2019 02:30
Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.
Answers: 1
Iron(iii) ions, fe3+ , react with thiocyanate ions, scn- , in a reversible reaction to form a red so...
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