Molecules are held together by either covalent bonding or ionic bonding. Several types of non-metal elements exist only as molecules in the environment. For example, hydrogen only exists as hydrogen molecule. A molecule of a compound is made out of two or more elements.
In general, chiropractic services range from approximately $30 to $200 per session. Of course, each type of treatment has a different cost. For example, an initial consultation with a chiropractor may be provided at no charge, while a typical therapy session costs about $65 on average.
1 Sessions can range from $34 to $106 per session depending on where you live, how many regions of the spine a chiropractor services and whether exams are required. 2  Average fees are highest in the South, around $70 per session, and lowest in the Midwest, at $60.