Question

pregunta 10 (1 punto)
(01.05 mc)
while modeling a volcano using two substances, dereck observes bubbling and fizzing. which of the following best names and explains the change that causes bubbling and fizzing?
a
chemical change, because bubbling and fizzing indicate transfer of heat within substances
b
physical change, because bubbling and fizzing indicate transfer of heat within substances
c
chemical change, because bubbling and fizzing indicate production of a gas, which is a new substance
d
physical change, because bubbling and fizzing indicate production of a gas, which is a new substance

Explanation:

Un cambio químico implica la formación de una nueva sustancia. La producción de gas (evidenciada por burbujas y efervescencia) es una señal de que ha ocurrido una reacción química. En cambio, un cambio físico no produce una nueva sustancia y la transferencia de calor no se asocia con la formación de gas en este contexto.

Answer:

C. Chemical change, because bubbling and fizzing indicate production of a gas, which is a new substance