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.
The Democratic Partyâs donkey and the Republican Partyâs elephant have been on the political scene since the 19th century. The origins of the Democratic donkey can be traced to the 1828 presidential campaign of Andrew Jackson. During that race, opponents of Jackson called him a jackass.