Chemistry, 25.10.2019 23:43 sirdre1982
In the simulation, open the custom mode. the beaker will be filled to the 0.50 l mark with a neutral solution. set the ph to 2.85 by using the green arrows adjacent to the ph value indicated on the probe in the solution. once you adjust the ph, note the corresponding oh? ion concentration in m as given in the graphic on the left side of the simulation. make sure to select the option "concentration (mol/l)" above the graphic. select on the logarithmic scale below the graphic. find the poh of the solution. express your answer numerically to two decimal places.
Answers: 1
Chemistry, 22.06.2019 04:00, queenkimm26
Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?
Answers: 3
Chemistry, 22.06.2019 08:30, Apple557
The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.
Answers: 1
Chemistry, 22.06.2019 16:10, 00015746
Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)
Answers: 2
In the simulation, open the custom mode. the beaker will be filled to the 0.50 l mark with a neutral...
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