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
8090 [49]
3 years ago
11

Why do group 1 cations form precipitates when mixed with hcl?

Chemistry
1 answer:
Xelga [282]3 years ago
8 0
Both of you are overlooking a pretty big component of the question...the Group I cation isn't being dissociated into water. We're testing the solubility of the cation when mixed with HCl. And this IS a legitimate question, seeing as our lab manual is the one asking. 

<span>By the way, the answer you're looking for is "Because Group I cations have insoluble chlorides". </span>

<span>"In order...to distinguish cation Group I, one adds HCl to a sample. If a Group I cation is present in the sample, a precipitate will form." </span>
You might be interested in
Determine the number of moles of mg2+(aq) ions produced when 2.5 moles of zn 2+aq react completely in this cell
Montano1993 [528]
The question is incomplete. Complete question is attached below.

Solution:
The reaction involved in present electrochemical cell is:

Mg(s)     +       Zn2+(aq.)      ↔        Zn(s)      +      Mg2+ (aq.)

Thus, from above reaction it can be seen that 1 mole of Zn2+ produces 1 mole of Mg2+.

Thus, 2.5<span> moles of Mg2+(aq) ions would be produced when 2.5 moles of Zn2+(aq) will react.</span>

4 0
3 years ago
Read 2 more answers
Solve for x in the following expression: 3 / x = 7
amm1812
The answer is D) 0.4285
4 0
3 years ago
Read 2 more answers
Can colloidal suspensions be separated out by filtration
balu736 [363]

Answer:

Colloidal can not be separated through filtration.

Suspension can be separated through filtration.

Explanation:

Colloidal:

Colloidal consist of the particles having size between 1 - 1000 nm i.e, 0.001- 1μm. While the pore size of filter paper is 2μm. That's why we can not separate the colloidal through the filtration. However it can be separated through the ultra filtration. In ultra filtration the pore size is reduced by soaking the filter paper in gelatin and then in formaldehyde. This is only in case of when solid colloidal is present, if colloid is liquid , there is no solid particles present and ultra filtration can not be used in this case.

Suspension:

The particle size in suspension is greater than 1000 nm. The particles in suspension can be separated through the filtration. These particles are large enough and can be seen through naked eye.

5 0
3 years ago
Read 2 more answers
How many grams are there in 3.30x10 23 grams of n2i6
qwelly [4]
Technically, the answer should be 3.30 * 10^23 grams. But I think you mean either molecules, atoms, moles or grams of Ni2I6 with that number of molecules .

1 mole of Ni2 I6  = 6.02 * 10^23 molecules
x  [mole] = 3.30 * 10^23 molecules

1/x = 6.02 * 10^23 / 3.30 * 10^23 Cancel the 10^23 on the right side
1/x = 6.02 / 3.30 Cross multiply
3.30 = 6.02 x Divide by 6.02
3.30 / 6.02 = x 
x = 0.548 moles 

what to do from here?

1 mole of Ni2I6 is
2 * Ni = 2 * 59 = 118 grams
6 *  I = 6 * 131 = <u>786 grams</u>
Total  =               904 grams

Set up a proportion.
<u>1 mole Ni2I6 </u>  = <u>904 grams</u>  
0.548 moles    = x

1/0.548 = 904/x Cross multiply
x = 0.548 * 904
x = 495.4 grams of Ni2I6 <<<<<< Answer.

8 0
3 years ago
A. Choose one of the four biogeochemical cycles that were discussed in this unit - carbon, nitrogen, water, or oxygen and descri
MAVERICK [17]

Water cycle simply refers to the continuous movement or flow of water from the atmosphere to the earth and back to the atmosphere

<h3>What is are the stages of water cycle?</h3>

These are the basic stages through which water passes. These stages are:

  • Evaporation
  • Condensation
  • Precipitation
  • Collection.

So therefore, water cycle simply refers to the continuous movement or flow of water from the atmosphere to the earth and back to the atmosphere

Learn more about water cycle:

brainly.com/question/25796102

#SPJ1

6 0
2 years ago
Other questions:
  • The side chain of ________ has a pKa in the physiological pH range and is therefore often involved in proton transfer during enz
    6·1 answer
  • Which medium allows sound to travel faster, air or water?
    6·2 answers
  • A piece of notebook paper
    14·2 answers
  • Describe the meaning of the two parts of the name amino acid
    9·2 answers
  • what were the first living organisms on Earth and how did they change Earth's development and composition?
    15·1 answer
  • In which state do the particles have the most energy?
    14·2 answers
  • Having a control group is important when doing an investigation why?
    5·2 answers
  • A solid is composed entirely of xenon atoms. What type of solid is it?
    10·1 answer
  • Which of the following is NOT a feature found on the Moon?
    15·1 answer
  • Calculate the pressure at which the volume of oxygen becomes tripled. if it initial volume at 3.00 atm at 75cm³. if temperature
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!