Chemistry, 04.06.2020 13:00 Donlito6997
At standard pressure (760 mm) water boils at 100C. A vacuum pump is used to reduce the ambient pressure above water under a sealed bell jar. By reducing the pressure, the boiling point is lowered so that the water begins to boil at room temperature. What is the approximate pressure at which water boils at room temperature (22C)?
Answers: 2
Chemistry, 22.06.2019 12:00
In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?
Answers: 1
Chemistry, 22.06.2019 14:10
16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.
Answers: 2
Chemistry, 22.06.2019 23:00
Which organism develops breathing organism develops breathing organs from pharyngeal arches? shark, spider, sea star, sea horse
Answers: 2
At standard pressure (760 mm) water boils at 100C. A vacuum pump is used to reduce the ambient press...
Physics, 23.07.2019 12:40