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How do you write the oxidation number of the element in the compound KBr?
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What is the oxidation number for S in S 2?
Pure element has zero oxidation number. When forming ions it is equal the charge of ion.Atomic sulfur has oxidation number of 0. Its simple ion, sulfide carries oxidation status -2. While forming numerous compounds, the oxidation number of sulfur can vary form -2 to +6.
What is chemical shortland?
Chemical shorthand is a way to write out the components of a compound in a neat and orderly fashion. It is made up of a combination of the element abbreviations and subscripts which indicate the number of each element.
How are chemical formulas written do they use superscripts or subscripts?
Chemical formulas are written with the chemical symbol of each element followed by a subscript. If no subscript is written, it is understood to be 1. In a molecular formula, the subscripts indicate the number of atoms of each element that are present in one molecule. In a chemical formula for an ionic compound, the subscripts represent the lowest whole number ratio of ions in the compound.
How to write the formula for calcium chloride. Explain how you determined this formula?
Calcium's chemical symbol is Ca. Calcium's oxidation number is +2.Chloride's chemical symbol is Cl. Chloride's oxidation number is -1.Ca +2 Cl -1Ca 1 Cl 2 (Switch the two numbers)Ca1Cl2 HOWEVER if there's only one of an element, don't write the 1CaCl2
Is sulfuric acid a compound a mixture or a element?
It is a compound- and do not write in this area when asking a question. If you do, the computer sends it to the "already answered" bucket.
What is the oxidation number for S in S 2?
Pure element has zero oxidation number. When forming ions it is equal the charge of ion.Atomic sulfur has oxidation number of 0. Its simple ion, sulfide carries oxidation status -2. While forming numerous compounds, the oxidation number of sulfur can vary form -2 to +6.
What is oxidation number stand for?
Oxidation number is usually taken to be the notional charge of an atom following a predetermined set of rules to assign electrons. As such it is an electron counting formalism. Wikipedia has a confusing write up which has been ultimately caused by IUPAC who have contradictory definitions in their naming and gold book documentation. The rules in wikipedia are a commonly applied set- although some chemists adhere to different rules that assign electrons to the most electronegative atom- it depends where you were taught. In coordination chemistry, the oxidation number of a central atom in a coordination compound is the charge that it would have if all the ligands were removed along with the electron pairs that were shared with the central atom. The oxidation number (previously called the Stock number, is used in the nomenclature of inorganic compounds. It is represented by a Roman numeral. The oxidation number is placed either as a right superscript to the element symbol, for example FeIII, or in parentheses after the name of the element, iron(III): in the latter case, there is no space between the element name and the oxidation number. Check the related source for more information.
What is chemical shortland?
Chemical shorthand is a way to write out the components of a compound in a neat and orderly fashion. It is made up of a combination of the element abbreviations and subscripts which indicate the number of each element.
How are chemical formulas written do they use superscripts or subscripts?
Chemical formulas are written with the chemical symbol of each element followed by a subscript. If no subscript is written, it is understood to be 1. In a molecular formula, the subscripts indicate the number of atoms of each element that are present in one molecule. In a chemical formula for an ionic compound, the subscripts represent the lowest whole number ratio of ions in the compound.
How to write the formula for calcium chloride. Explain how you determined this formula?
Calcium's chemical symbol is Ca. Calcium's oxidation number is +2.Chloride's chemical symbol is Cl. Chloride's oxidation number is -1.Ca +2 Cl -1Ca 1 Cl 2 (Switch the two numbers)Ca1Cl2 HOWEVER if there's only one of an element, don't write the 1CaCl2
What do you write to name of a compound written as Cu0?
This is the formula for Copper (II) Oxide Copper has two possible oxidation numbers (+2 or +1) since there are no written subscripts for in the formula CuO, copper's oxidation number must have been +2 (If it had been +1, the formula would be Cu2O and the name of the compound woould be Copper (I) Oxide)
Is sulfuric acid a compound a mixture or a element?
It is a compound- and do not write in this area when asking a question. If you do, the computer sends it to the "already answered" bucket.
How can you write an atomic number?
If you mean how can you write an atomic number with the element's symbol, you write the atomic number as a subscript in front of the element's symbol.Examples4Be, 79Au, 109Mt
What compounds can be formed from element X with oxidation number 3 plus and 5 plus and element Z with oxidation numbers 2 and 3 write their formulas?
X(3+) and Z(2-) will give X2Z3. X(3+) and Z(3-) will give XZ. X(5+) and Z(2-) will give X2Z5. X(5+) and Z(3-) will give X3Z5.
Why do you have chemical symbols?
We have chemical symbols so that we can quickly write about an element or compound with out having to write out the name every time you want to refer to it.
Why do you have to write Pb instead of PB?
because if you were to write PB then it would be a compound not a single element while Pb is lead.
How are oxidation number determined and used?
This may best be demonstrated by example: Here are two forms (read: oxidation numbers) of iron, as FeO and Fe2O3. Because we know oxygen has a -2 charge per atom, the oxidation number of Fe in FeO is II. As for Fe2O3, we know that the oxidation number of Fe is III; there is no charge on the compound, so the two iron molecules must equally offset the -6 charge from the three oxygen atoms. Oxidation numbers are written as roman numerals. You would write these two forms of iron oxide as iron(II) oxide and iron(III) oxide, respectively. Oxidation states are the (+) or (-) charges written as a superscript.
