Which of these is a chemical property of a substance? question 16 options: melting point density reactivity color

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

How are isotopes of the same chemical element alike? how are they different?

What is the mass of 0.46 mol of mgcl2