suppose that a substance in a beaker is heated over a burner in a science lab. which observation would most…

suppose that a substance in a beaker is heated over a burner in a science lab. which observation would most likely indicate that a chemical change has occurred in the substance? if the substance is a liquid or solid, an increase in temperature would indicate a chemical change. if the substance is a liquid, a change of some of the liquid to gaseous form would indicate a chemical change. if the substance is a solid, a change of some of the solid to liquid form would indicate a chemical change. if the substance is a liquid or solid, production of an odor would indicate a chemical change.
Answer
Brief Explanations:
Un cambio químico implica la formación de una nueva sustancia con propiedades diferentes. Un aumento de temperatura, cambio de estado (líquido - gas o sólido - líquido) son cambios físicos. La producción de un olor suele indicar la formación de una nueva sustancia, lo cual es un cambio químico.
Answer:
D. If the substance is a liquid or solid, production of an odor would indicate a chemical change.