subject
Chemistry, 05.05.2020 15:05 61497

Luis dice a Eduardo que cuando la leña se quema, solo quedan las cenizas y que, por tanto, no hay conservación de la masa. ¿que le contestaría Eduardo, que es un experto en reacciones químicas?

a)Que se tendría que tener en cuenta la masa de oxigeno que ha reaccionado y la de dióxido de carbono y vapor de agua que se ha formado, para poder comprobar que la masa se conserva.

b) que en las reacciones quimicas la masa se conserva, pero en las combustiones siempre disminuye.

ansver
Answers: 3

Another question on Chemistry

question
Chemistry, 21.06.2019 16:30
Subduction zones occur on earth where dense oceanic crust dives under more buoyant continental crust. these boundaries are characterized by a deep ocean trench next to a high continental mountain range, large numbers of earthquakes and volcanoes. all of this is further evidence for the a) big bang theory b) origin of the species eliminate c theory of plate tectonics d theory of natural selection 4 sedimentary rocks found high in the himalayen mountain
Answers: 1
question
Chemistry, 22.06.2019 04:20
Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.
Answers: 1
question
Chemistry, 22.06.2019 07:00
What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will
Answers: 1
question
Chemistry, 22.06.2019 12:30
Avariable that is not being directly tested during an experiment should be
Answers: 1
You know the right answer?
Luis dice a Eduardo que cuando la leña se quema, solo quedan las cenizas y que, por tanto, no hay co...
Questions
question
Mathematics, 13.07.2019 11:30
question
Mathematics, 13.07.2019 11:30
Questions on the website: 13722367