1 Calcium chloride is a compound made of calcium and chloride, and is one of the types of salt used to control ice on sidewalks and roadways. 2  The compound is often produced from limestone. 3  Potassium nitrate-This electrolyte, commonly known by the formula KNO3, is used in a wide variety of substances.
A. work hard like a mule in a field B. stubborn like a mule C. not as smart as a mule D. policy choices stunk like a mule. A: The original meaning of the Democratic donkey symbol was: stubborn like a mule.
American Classification. The American Donkey and Mule Society (ADMS) classifies donkeys according to size for the purposes of registering the animal. Most donkeys are âstandard donkeysâ with a height of between 36 and 48 inches at the shoulder. Animals referred to as burros usually are standard-sized donkeys.