Chemistry, 27.08.2021 07:40 princeton23124
La soda para lavar, un compuesto que se usa para preparar agua dura para lavar la ropa, es un hidrato. Su fórmula se puede escribir como Na, CO, • xH, O, donde x es el número de moles de mol de Na, CO3. Cuando una muestra de 2.558 g de sosa de lavado se calienta a 25 ° C, se pierde toda el agua de hidratación, dejando 0.948 g de Na, COg. ¿Cual es el valor de x?
Answers: 1
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Citric acid has a ph between 1 and 3. it is considered to be aa. weak acidb. weak basec. strong based. strong acid
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Which of the following reactions represents an exothermic reaction? nh3(g) + 12.0 kcal ½n2(g) + 3/2 h2(g) ch4 + 2o2 co2 + 2h2o + 212,800 cal c + 2s cs2, h = 27,550 cal c(graphite) c(diamond), h = 0.45 kcal 2h2o 2h2 + o2, h = +58 kcal
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Chemistry, 23.06.2019 13:50
Which compounds are the brønsted-lowry bases in this equilibrium: hc2o4– + h2bo3– h3bo3 + c2o42– ? a. h2bo3– and h3bo3 b. hc2o4– and h3bo3 c. hc2o4– and c2o42– d. h2bo3– and c2o42– e. hc2o4– and h2bo3–
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La soda para lavar, un compuesto que se usa para preparar agua dura para lavar la ropa, es un hidrat...
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