An earthquake's magnitude is a measure of how much energy an earthquake releases. Typically, the richter scale is used.
Barium chloride is salt with ionic bonds. Barium chloride contains one barium cations (charge of ion is 2+) and two chlorine anions (charge for ion is 1-).
The representative particle<span> of an ionic compound is its formula unit (</span>lowest whole number ratio of ions in an ionic compound), for barium chloride that is BaCl₂.
A. It does not retain the properties of the substances that make it up
<span>Synthesis, decomposition, single replacement and double replacement.</span>