1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Naily [24]
3 years ago
13

A solution containing a mixture of metal cations was treated with dilute HCl and no precipitate formed. Next, H2S was bubbled th

rough the acidic solution. A precipitate formed and was filtered off. Then, the pH was raised to about 8 and H2S was again bubbled through the solution. A precipitate again formed and was filtered off. Finally, the solution was treated with a sodium carbonate solution, which resulted in no precipitation. Which metal ions were definately present, which were definitely absent, and which may or may not have been present in the original mixture?Ag+, Ba2+, Mg2+, Hg2+, Pb2+, Hg2^2+, Cu2+, Zn2+, Ni2+, Co2+, Sn2+, Li+, Sb3+
Chemistry
1 answer:
erica [24]3 years ago
5 0

Answer:

Explanation:

  Ions which will  be definitely  absent -

Ag⁺ , Hg₂⁺ , Pb⁺², because their chlorides are insoluble in water.

Ba⁺² ,Ca⁺² because their carbonates are insoluble in water,

Ions which will be definitely present  

Cu⁺² , Pb⁺² . Hg⁺² , Sb⁺³ , Sn⁺² , because their sulphides are insoluble at pH = 8.

For the rest nothing can be said.

 

You might be interested in
Why does chlorine displace bromine from potassium bromide solution
Nataliya [291]

Answer:

A more reactive halogen displaces a less reactive halogen from a solution of one of its salts.

Chlorine is more reactive than bromine, thus it displaces bromine.

4 0
2 years ago
Can someone help me to answer these Chemistry questions?
Andreyy89
Which ones in specific
3 0
3 years ago
Do elements of the halogen family lose one electron to become halide ions
lana66690 [7]
Its on Google..."The group number of a representative element in the periodic table is related to the number of valence electrons it has. ... Elements of the halogen family lose one electron to become halide ions."
5 0
3 years ago
Recall all the models you described in task 1. Think about the results each model would predict for Thomson’s experiment. Which
Bumek [7]

Answer:

J.J. Thomson’s experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged “soup.”

4 0
2 years ago
(HELP) how can you make the metal chair less cold when you sit on it?
soldi70 [24.7K]

Answer:

metal can hold heat keep it near fire

7 0
3 years ago
Other questions:
  • 1.72 mol of LiCl in 37.5 L of solution
    9·1 answer
  • What electrically neutral atom will have an electron configuration of 1 s 22 s 22 p 4? Use a periodic table.
    14·1 answer
  • Is sand macromolecule or network solid?<br><br> Thank you
    13·1 answer
  • 3. Why is it necessary to use structural formulas to represent many organic compounds
    10·2 answers
  • You find a nail on the ground in the parking lot, in a small puddle of water. Rust has formed on the outside of the nail. Was th
    13·2 answers
  • CHECK MY ANSWER
    12·2 answers
  • What property of water is primary for living organisms? (SC.6.E.7.4) *
    13·2 answers
  • What happens to the charge if a nonmetal<br> takes two valence electrons?
    6·2 answers
  • All elements on the modern periodic table are areanged in order of increasing what
    10·1 answer
  • How do red foxes get offspring?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!