B. Identify the cleaning solvents used in the following substances. 1. Polar substances
A. dust
B. mud
2. Nonpolar substances
A oil
B. grease oil​

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.