What is the oxidation number of an element and how does it relate to acidity?Element:An element may be defined as a substance made up of atoms. It has the same number of protons per nucleus and it is irreducible by normal chemical processes. Examples of elements are iron...
There are a few rules to writing the oxidation numbers of each atom: Group 1 and group 1 elements are assigned an oxidation state of +1 and +2,...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts...
The oxidation state of an element describes the number of electrons transferred in reactions. For example, the oxidation or valence states of the following elements are equal to the number of equivalents: • Calcium: Ca+2 ion: valence of 2: number or no. of equivalents: 2 • Aluminum: ...
An enthalpy diagram is a method used to keep track of the way energy moves during a reaction over a period of time. Learn how to draw and label enthalpy diagrams, the definition of an enthalpy diagram, and how to examine the diagram. ...
The detected intensities from the mass spectrometer were calibrated by linear regression, and then the equation of the calibration curve was used to calculate concentrations of dissolved ions in the electrolyte. The dissolution rate of Al is converted by subtracting the solute contribution from the ...
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The use of pharmaceuticals for the treatment of pets is connected with discharge directly into the environment. The estimation (load) of this source has never been presented and is hard to calculate; some may say that this is a minor part of the total mass of pharmaceuticals introduced into ...
If we calculate the ratios of the measured solubilities from the y-offsets of the fits in Fig. 11 to the corresponding error bars in the matrix/solid ratio, we get ratios of ~5 for both elements, indicating that we can exclude segregation to the grain boundary within 5σ intervals which...
When a compound is separated, is this a chemical change because there are now different elements? At 2000 K, the partial pressures of an equilibrium mixture of H_2S, H_2, and S are 0.045, 0.053, and 0.035 atm, respectively. Calculate the value of the equilibrium constant K_p at 2000 ...
Why is the chemical formula of Iron (iii) sulfide Fe_2S_3 and not Fe_2SO_3. Calculate the percent by mass of the element listed first in the formula for tin(II) oxide, SnO. Would the elements Al and Rb form an ionic compound? Explain. Write the chemical formula and t...