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When writing the formula of a compound does the symbol of the element with the positive oxidation number come first?
Usually yes. However, with more complex molecules, there may be molecular ions which throw the sequence out.
For example, alum is K2SO4.(Al2SO4)2.24H2O
Here the positive ions are K, Al and H but these are subsumed in their corresponding multiatomic ions.
What else can I help you with?
In a formula for an ionic compound which element comes first?
The element that forms the cation (positive ion) comes first in the formula for an ionic compound.
What is the compound CL4?
There is no compound with the formula CL4. The element chlorine typically forms compounds with a -1 oxidation state, such as in NaCl (sodium chloride).
What is the oxidation number of P in PO?
The oxidation number of oxygen in a compound is usually -2, which means that for the compound PO, the oxidation number of oxygen is -2. Since the sum of the oxidation numbers in a compound must equal zero, the oxidation number of P in PO is +2.
What is the formula of potassium hexafluoro platinate IV?
This formula is K2PtF6. The six fluorine atoms are indicated by the prefix "hexa"; each fluorine atom always has -1 as its oxidation state in a compound with any other element; the oxidation number of platinum is specified by "IV" and is positive; this means that two additional positive oxidation numbers are required from the remaining element, potassium, which in compounds always has an oxidation number of +1 per atom, so that two atoms are required. The order of the atomic symbols follows from the rule that the least electronegative element's symbol should be written first and the most electronegative element's symbol should be last.
Can the oxidation number of an element in a compound be a fraction?
No. it can't be fractional. However you can get fractional answers uch as Fe in Fe3O4 where the average oxidation state is 2.666.... You need to know something about the structure that will tell you what oxidation numbers of the Fe in this case two Fe with +3 and one Fe with +2 in each formula unit.
In a formula for an ionic compound which element comes first?
The element that forms the cation (positive ion) comes first in the formula for an ionic compound.
What is the compound CL4?
There is no compound with the formula CL4. The element chlorine typically forms compounds with a -1 oxidation state, such as in NaCl (sodium chloride).
What is the oxidation number of P in PO?
The oxidation number of oxygen in a compound is usually -2, which means that for the compound PO, the oxidation number of oxygen is -2. Since the sum of the oxidation numbers in a compound must equal zero, the oxidation number of P in PO is +2.
What is the formula of potassium hexafluoro platinate IV?
This formula is K2PtF6. The six fluorine atoms are indicated by the prefix "hexa"; each fluorine atom always has -1 as its oxidation state in a compound with any other element; the oxidation number of platinum is specified by "IV" and is positive; this means that two additional positive oxidation numbers are required from the remaining element, potassium, which in compounds always has an oxidation number of +1 per atom, so that two atoms are required. The order of the atomic symbols follows from the rule that the least electronegative element's symbol should be written first and the most electronegative element's symbol should be last.
Which element forms Na2XO3?
The element that forms Na2XO3 is sodium (Na). In this compound, the sodium atom has a +1 oxidation state, resulting in the formula Na2XO3.
Can the oxidation number of an element in a compound be a fraction?
No. it can't be fractional. However you can get fractional answers uch as Fe in Fe3O4 where the average oxidation state is 2.666.... You need to know something about the structure that will tell you what oxidation numbers of the Fe in this case two Fe with +3 and one Fe with +2 in each formula unit.
How do you write chemical formulas with oxidation numbers?
To write chemical formulas with oxidation numbers, first determine the oxidation number of each element in the compound based on their typical values. Then, use these oxidation numbers to balance the charges of cations and anions in the compound. Finally, write the chemical formula using subscripts to ensure that the overall charge of the compound is neutral.
What are some important atomic term?
The formula of a compound indicate the number of atom each element in a molecule of a compound in question.Te oxidation number of a pure element in it's in atomic or molecular state is zero.E.g.H,O,He etc
The sum of oxidation numbers in a neutral compound is always?
The sum of oxidation numbers in a neutral compound is always zero. (Note that in order for this to be true, the oxidation number of each type of atom present must by multiplied by the number of such atoms present in the formula unit for the compound before the addition is performed.)
What is the name of the compound with the formula N204?
The compound with the formula N2O4 is dinitrogen tetroxide. It is a chemical compound formed by the oxidation of nitrogen dioxide.
If X represents an element of group 1 the formula of its oxide would be what?
If X is an element from group 1 (alkali metals), the formula of its oxide would be X2O. Alkali metals have a +1 oxidation state, which combines with the -2 oxidation state of oxygen to form a neutral compound.
How to find the mass of an element in a compound?
To find the mass of an element in a compound, you can use the formula: mass of element (mass of compound) x (percent composition of element in compound). This formula helps you calculate the mass of a specific element within a compound based on its percentage composition.
