Chemistry, 12.12.2020 16:00 dragongacha777
students use a balance to determine the mass of a marble is 7.5 grams. a graduated bottle contains 10.0 milliliters of water. when the marble is carefully into lowered the graduated bottle and is completely covered with water the volume of the water containing the marble has increased to 12.5 milliliters. find the density of the marble
Answers: 2
Chemistry, 21.06.2019 14:40
Water ionizes by the equation h2o(l)⇌h+(aq)+oh−(aq) the extent of the reaction is small in pure water and dilute aqueous solutions. this reaction creates the following relationship between [h+] and [oh−]: kw=[h+][oh−] keep in mind that, like all equilibrium constants, the value of kw changes with temperature.
Answers: 1
Chemistry, 21.06.2019 22:30
Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.
Answers: 2
Chemistry, 22.06.2019 04:30
This question is about electrolysis. metal spoons can be coated with silver. this is called electroplating. suggest one reason why spoons are electroplated?
Answers: 1
students use a balance to determine the mass of a marble is 7.5 grams. a graduated bottle contains 1...
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