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.
A number written as a preceding superscript (238U) is a mass number. A number written as a following superscript (O2-) is a charge.
the sides should balance each other out, so zero. not ten
Most of the time yes. However, you can write it anyway you choose. Its your life! Who are they to tell you how to write oxidation numbers!
The number ONE is never written in the formula for a chemical coumpound because it will be assumed. ONE is the number!
By listing the nonmetals in order, generally from left to right on the periodic table, and indicating subscripts as appropriate. For instance, a classic example of a covalently bonded chemical is carbon dioxide, which is written CO2.
True
maybe o.o
The number written in front of a chemical formula is called the coefficient. This represents the number of molecules of the substance in the chemical formula. For example, 8SO3 tells you that there are 8 molecules of SO3 or sulfur trioxide.
Unfortunately, superscripts and subscripts are not recognized in WikiAnswers. 2 cubed would be written with a superscript 3 following a 2. To indicate that here, we write 2^3.
In a chemical formula, a subscript is a number written to the right and slightly below the symbol for the chemical element. If the subscript is 1, it is not written. The subscripts for the chemical formula for water, H2O, are 2 for hydrogen and 1 for oxygen. The subscripts for the chemical formula for glucose, C6H12O6, are 6 for carbon, 12 for hydrogen, and 6 for oxygen.
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You can't change the subscript. The subscripts show how the elements/molecules are bonded.--------------------------------------------------------------------------------------------------------The subscripts represent the number of atoms of each element in each chemical formula-if you change the subscripts, you change the compounds the formulas are describing.Source: (e2020)
Yes.
We need to know the reactants and products with their chemical formulas.
The number ONE is never written in the formula for a chemical coumpound because it will be assumed. ONE is the number!
By listing the nonmetals in order, generally from left to right on the periodic table, and indicating subscripts as appropriate. For instance, a classic example of a covalently bonded chemical is carbon dioxide, which is written CO2.
A subscript is something written below the line.
In a chemical formula, a subscript number is used to denote the number of that type of atom, for example H2SO4 has 2 Hydrogens, 1 Sulphur and 4 Oxygens. A superscript number is not usually used in chemical formulae, but is used in rate equations to show the order of reaction with respect to a particular reactant, enzyme or condition.
The enthalpy change is usually written at the end of the equation. For instance, when hydrogen burns (apologies for the lack of subscripts) 2H2 + O2 = 2H2O Δ H = - 286 kJ per mol
The molecular formula of ethanol is written as either CH3CH2OH or C2H5OH, and its empirical formula is C2H6O. It is often written as EtOH.