Chemistry, 02.09.2019 22:10 leslychavez0269
What is the voltage of the voltaic cell zn|zn2+||cu2+|cu at 298 k if [zn2+] = 0.2 m and [cu2+] = 4.0 m? cu2+ + 2e- β cu eo = +0.34v.
Answers: 2
Chemistry, 22.06.2019 03:00
Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.
Answers: 3
Chemistry, 22.06.2019 13:00
6. using 3 β 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 β 4 sentences in your explanation.
Answers: 1
Chemistry, 22.06.2019 17:00
Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.
Answers: 1
Chemistry, 22.06.2019 20:10
The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 Γ 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + clβ(g) Γ¦ agcl(s)
Answers: 3
What is the voltage of the voltaic cell zn|zn2+||cu2+|cu at 298 k if [zn2+] = 0.2 m and [cu2+] = 4.0...
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