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.
A male donkey or ass is called a jack, a female a jenny or jennet; a young donkey is a foal. Jack donkeys are often used to mate with female horses to produce mules; the biological reciprocal of a mule, from a stallion and jenny as its parents instead, is called a hinny.