Chemistry, 06.02.2021 03:30 kevin7334

1. Representar los siguientes cambios químicos mediante ecuaciones químicas y su simbología. a) EL hierro de un clavo en estado sólido, reacciona con el oxigeno del aire en estado gaseoso, para producir óxido de hierro II en estado sólido.
b) El hidróxido de sodio en solución acuosa, reacciona con ácido clorhídrico también en solución acuosa,, para formar un precipitado de cloruro de sodio y agua en estado líquido.
c) Al reaccionar el nitrato de plomo II en solución acuosa, con el yoduro de potasio en soluciones acuosa, se forma un precipitado de color amarillo y nitrato de potasio en solución acuosa.
d) El óxido de azufre II en estado gaseoso, reacciona con el agua de lluvia en estado líquido y se forma como uno de sus productos el acido sulfúrico en solución acuosa.

2.- Interpretar y escribir en forma de texto la información expresado en las siguientes ecuaciones químicas.

a) Na2 CO3(ac) + MgSO4(ac) ---> Na2 SO4(ac) + ∨ MgCO3
b) Mg (OH)2(s) ---> MgO(s) + H2O(l)

Nota:
Las letras minúsculas dentro de los paréntesis son los estados de agregación.
El símbolo "--->" indica la dirección química.
Los números a la derecha de cada molécula son sus subíndices de las moléculas.
El símbolo "∨" Indica que se desprende un gas.

Por favor, ayúdenme, llevo mucho rato intentando comprenderlo, hasta he visto videos, pero es muy complicado para mi, este trabajo lo necesito entregar para mañana temprano.
No me ignoren, por favor, también tardé mucho en escribir todo esto, pero no encuentro más alternativas.
Les daré todos los puntos que tengo :(

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