Chemistry, 15.10.2019 21:30 Amandachavez94
Limestone stalactites and stalagmites are formed in caves by the following reaction: ca2+(aq)+2hco−3(aq)→caco3(s)+co2(g) +h2o(l) if 1 mol of caco3 forms at 298 k under 1 atm pressure, the reaction performs 2.49 kj of p−v work, pushing back the atmosphere as the gaseous co2 forms. at the same time, 38.90 kj of heat is absorbed from the environment.
Answers: 3
Chemistry, 22.06.2019 10:20
Gwhich r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? which r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? −ch2−oh −ch2−o||c−nh2 −ch2−coo− −ch2−ch2−ch2−ch2−n+h3
Answers: 3
Chemistry, 22.06.2019 12:00
In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =
Answers: 1
Chemistry, 22.06.2019 12:10
Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.
Answers: 1
Chemistry, 23.06.2019 00:50
What is the enthalpy of combustion (per mole) of c4h10 (g)? –2,657.5 kj/mol –5315.0 kj/mol –509.7 kj/mol –254.8 kj/mol
Answers: 1
Limestone stalactites and stalagmites are formed in caves by the following reaction: ca2+(aq)+2hco−...
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