Am I right? Classify the following properties of sodium metal as physical or chemical: •Silver metallic color—physical property •Turns gray in air—physical property •Melts at 98º C-melting point is physical property •Reacts
1. The ability of an apple to change color when exposed to air is a ____. (1 point)physical property chemical property physical change chemical change 2. Which of the following is NOT a possible sign of a physical change?
When an electric current passes through water during the process of electrolysis, two gases are formed. One gas has a boiling point of -183 C and the other has a boiling point of -253 C. Has a physical change or chemical change occurred?