When a chemical change occurs, A. the colors of the substances involved never change. B. new substances with new properties are formed. C. it is always because something was burned. D. the newly formed substances have the same properties as the old substances.
Jose and eric were given four samples in lab. the results of their analysis are shown in the table. based on the data they collected, which sample is most likely a metal?
11) burning your hand when accidentally touching a hot plate is an example of which heat transfer? a. conduction b. convection c. radiation d. none of these