![subject](/tpl/images/cats/himiya.png)
Chemistry, 13.04.2021 01:40 Adailson8890
An unknown solid is entirely soluble in water. On addition of dilute HCl, a precipitate forms. After the precipitate is filtered off, the pH is adjusted to about 1 and H2S is bubbled in; a precipitate again forms. After filtering off this precipitate, the pH is adjusted to 8 and H2S is again added; no precipitate forms. No precipitate forms upon addition of (NH4)2HPO4. The remaining solution shows a yellow color in a flame test.
Based on these observations, which of the following compounds might be present, which are definitely present, and which are definitely absent.
CdS, Pb(NO3)2, HgO, ZnSO4, Cd(NO3)2, and Na2SO4
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 00:20
What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:30
When a scientific theory has been tested and proved by the scientific community, it becomes a law
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 18:50
Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g. what is the percent by mass of water in the hydrate? %
Answers: 1
![question](/tpl/images/cats/himiya.png)
You know the right answer?
An unknown solid is entirely soluble in water. On addition of dilute HCl, a precipitate forms. After...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 10.07.2019 22:30
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 10.07.2019 22:30
![question](/tpl/images/cats/mat.png)
Mathematics, 10.07.2019 22:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.07.2019 22:30
![question](/tpl/images/cats/mat.png)
Mathematics, 10.07.2019 22:30
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.07.2019 22:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.07.2019 22:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 10.07.2019 22:30
![question](/tpl/images/cats/mat.png)
Mathematics, 10.07.2019 22:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
English, 10.07.2019 22:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 10.07.2019 22:30