One reason is that the composition of a polyatomic ion is fixed, just as that of a compound is fixed. If more than one polyatomic ion is present in an ionic compound, the use of parentheses allows a subscript to be used after the right parenthesis to designate the number of ions just as such subscript is used to designate the number of atoms in a compound.
put parentheses around the atoms in the ion and then add a subscript - apex
The chemical formula for the oxygen in the air is O2, where the 2 should be a subscript.
The chemical formula for acetic acid is CH3COOH. It should be noted that acetic acid is the same as ethanoic acid.
If this compound exist, the chemical formula should be Pb(BrO4)2.
The formula of iron(III) oxalate is C6Fe2O12.
More than one polyatomic ion should be indicated in a chemical formula by putting parentheses around the atoms in the ions and then adding a subscript.
More than one polyatomic ion should be indicated in a chemical formula by putting parentheses around the atoms in the ions and then adding a subscript.
put parentheses around the atoms in the ion and then add a subscript - apex
In a chemical formula, more than one polyatomic ion is indicated by using parentheses around the ion and then placing a subscript outside the parentheses to denote the number of that ion present. For example, in the case of calcium nitrate, which contains two nitrate ions (NO₃⁻), the formula is written as Ca(NO₃)₂. This notation clarifies that there are two nitrate ions associated with each calcium ion in the compound.
When more than one polyatomic ion is present in a chemical formula, the ion is enclosed in parentheses, and a subscript is used to indicate the number of that ion. For example, in calcium sulfate, which contains two sulfate ions, the formula is written as Ca(SO₄)₂. This notation clarifies the presence of multiple identical polyatomic ions in the compound.
Yes. PO4(3-) Phosphate, for example. Mg3(PO4)2 Why should be apparent. Mg2PO42 would be very confusing.
To find the charge on a chemical formula, first identify the oxidation states of the individual elements based on their typical charges in compounds. Sum these oxidation states to determine the overall charge of the compound. For ionic compounds, the total positive charge from cations should balance the total negative charge from anions, resulting in a neutral compound. If the compound is polyatomic, refer to the known charge of the polyatomic ion.
The chemical formula for the oxygen in the air is O2, where the 2 should be a subscript.
The chemical formula for acetic acid is CH3COOH. It should be noted that acetic acid is the same as ethanoic acid.
If this compound exist, the chemical formula should be Pb(BrO4)2.
The chemical formula of decane is C10H22.
CaS is the chemical formula for calcium sulphide. NB The elemental letters should NOT be separated by spaces. 'Ca S' is incorrect. I should be written as ' CaS'.