When an apple is cut, it often turns brown. what does the color change indicate? select one: a. physical and chemical changes b. chemical change only c. physical change only

Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is

From the options provided for each element below, choose the properties that it may have based on its location in the periodic table fluorine (f): highly reactive nonmetal shiny a conductor

Which metals are called noble metals