Chemistry, 18.11.2020 17:30 zeesharpe05
A sample of helium gas at a pressure of 0.538 atm and a temperature of 256 °C, occupies a volume of 437 mL. If the gas is cooled at constant pressure until its volume is 316 mL, the temperature of the gas sample will be
Answers: 2
Chemistry, 21.06.2019 19:30, angelinadhar
What are the percent by mass of copper in penny lab
Answers: 3
Chemistry, 22.06.2019 11:30, ansuaprajita1506
Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.
Answers: 3
Chemistry, 23.06.2019 06:00, wirchakethan23
When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.
Answers: 1
A sample of helium gas at a pressure of 0.538 atm and a temperature of 256 °C, occupies a volume of...
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