The chemical change process whereby a molecule breaks down into simpler molecules or elements is called:
decomposition
endothermic
exothermic
a phase change

The number at the end of an isotope’s name is the number.

Substance 33°f 100°f peanut oil solid liquid margarine solid liquid chocolate chips solid liquid which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.

Name a brittle metal , which is used to galvanize iron