Besides smelling, touching and looking at the physical appearance of a substance, there are other ways to know for sure what that substance is. This is where chemical properties come in. A chemical property is a property of a substance that is observed when a substance undergoes a chemical change. The chemical change is a type of change that also changes the identity of a substance due to breakage and formation of new chemical bonds, as shown in the figure below: The figure shows a chemical change where two substances, A and B, form and break bonds with each other and other substances, C and D.
As of 2014, dimes have the smallest diameter of any U.S. coin and are also the thinnest. A penny is 1.52 mm thick with a diameter of 19.05 millimeters. It weighs 2.5 grams and has plain edges. A nickel is 1.95 millimeters thick with a diameter of 21.21 millimeters. It weighs 5 grams and has plain edges. A quarter is 1.75 millimeters thick and has a diameter of 24.26 millimeters.
How much does a nickel weigh? Of the coins in circulation in the United States, the nickel weighs more than the penny and the dime, but less than the quarter dollar, the half dollar and the dollar coins. Nickels tend to be thicker than pennies, dimes and quarters but less thick than half dollars and dollar coins.