Feeding an infant or toddler prepared formula instead of or in addition to breastfeedingFormula feeding is indicated when the mother has an illness that could be passed on to the baby through breast milk or through the close physical proximity required for breastfeeding. The type of atom is given using element symbols. The number of atoms is indicated by a subscript following the element symbol.
Density is commonly expressed in units of grams per cubic centimetre.
For example the density of water is 1 gram per cubic centimetre and Earth s density is 551 grams per cubic centimetre. A formula lists the elements contained within it and indicates the number of atoms of each element with a subscript numeral if the number is more than 1. A formula lists the elements contained within it and indicates the number of atoms of each element with a subscript numeral if the number is more than 1. The formula for water is H2O.