Chemistry, 07.04.2020 15:42 victoralaquinez
Based on the activity series, which one of the reactions below will occur (Spontaneous)? A. Mn (s) + NiCl2 (aq) → MnCl2 (aq) + Ni (s) B. SnBr2 (aq) + Cu (s) → CuBr2 (aq) + Sn (s) C. Pb (s) + NiI2 (aq) → PbI2 (aq) + Ni (s) D. Fe (s) + ZnCl2 (aq) → FeCl2 (aq) + Zn (s) E. None of the reactions will occur.
Answers: 1
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Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.
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Chemistry, 22.06.2019 06:00
When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?
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Chemistry, 22.06.2019 17:10
)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.
Answers: 1
Based on the activity series, which one of the reactions below will occur (Spontaneous)? A. Mn (s) +...
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