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
natta225 [31]
3 years ago
11

Predict whether a precipitation reaction will occur when aqueous solutions of pbcl2 and (nh4)2s

Chemistry
1 answer:
Nutka1998 [239]3 years ago
5 0
Answer : YES, The precipitation reaction will occur.

Explanation : When we mix the aqueous solutions of Lead chloride and Ammonium sulfide a reaction will occur which is stated below :

PbCl_{2} +(NH_{4}) _{2} S ----\ \textgreater \  PbS + 2[ (NH_{4})Cl]

The major product that is formed is Lead sulfate which is black in colour.

Once the reaction is complete one can observe a black precipitate getting obtained. 
You might be interested in
The rate of a reaction is measured by how fast a reactant is used up or how fast a product is formed.
ivanzaharov [21]
This statement is true. The rate of the reaction is measured by how fast a reactant is used up, or how fast a product is formed. This all tie's into the usage of energy. 
4 0
3 years ago
How many grams are in 8.3 moles of CaCl2?
r-ruslan [8.4K]

Answer:

(8.3×40)+(8.3×71)

921.3grames

3 0
3 years ago
Read 2 more answers
Which is the first step to take to help reduce pollution
rjkz [21]

B. Gain information about the current state of the environment and ways to improve it.

6 0
3 years ago
The concentration of hydrogen peroxide solution can be determined by
max2010maxim [7]

The question is incomplete, the complete reaction equation is;

The concentration of a hydrogen peroxide solution can be determined by titration

with acidified potassium manganate(VII) solution. In this reaction the hydrogen

peroxide is oxidised to oxygen gas.

A 5.00 cm3 sample of the hydrogen peroxide solution was added to a volumetric flask

and made up to 250 cm3 of aqueous solution. A 25.0 cm3 sample of this diluted

solution was acidified and reacted completely with 24.35 cm3 of 0.0187 mol dm–3

potassium manganate(VII) solution.

Write an equation for the reaction between acidified potassium manganate(VII)

solution and hydrogen peroxide.

Use this equation and the results given to calculate a value for the concentration,

in mol dm–3, of the original hydrogen peroxide solution.

(If you have been unable to write an equation for this reaction you may assume that

3 mol of KMnO4 react with 7 mol of H2O2. This is not the correct reacting ratio.)

Answer:

2.275 M

Explanation:

The equation of the reaction is;

2 MnO4^-(aq) + 16 H^+(aq) + 5H2O2(aq) -------> 2Mn^+(aq) + 10H^+ (aq) + 8H2O(l)

Let;

CA= concentration of MnO4^- =  0.0187 mol dm–3

CB = concentration of H2O2 = ?

VA = volume of MnO4^- = 24.35 cm3

VB = volume of H2O2 = 25.0 cm3

NA = number of moles of  MnO4^- = 2

NB = number of moles of H2O2 = 5

From;

CAVA/CBVB = NA/NB

CAVANB = CBVBNA

CB = CAVANB/VBNA

CB = 0.0187 * 24.35 * 5/25.0 * 2

CB = 0.0455 M

Since  

C1V1 = C2V2

C1 = initial concentration of H2O2 solution = ?

V1 = initial volume of H2O2 solution =  5.0 cm3

C2 = final concentration of H2O2 solution= 0.0455 M

V2 = final volume of H2O2 solution = 250 cm3

C1 = C2V2/V1

C1 = 0.0455 * 250/5

C1 = 2.275 M

8 0
3 years ago
On which energy level are the valence electrons for calcium (Ca) ?
zhannawk [14.2K]
The fourth (last) one in 2-8-8-2.
7 0
3 years ago
Other questions:
  • Which planet has a fierce hurricane-like storm that is several times the size of earth?
    9·2 answers
  • This element:
    6·1 answer
  • Two atoms that are isotopes of one another must have the same number of what? Question 6 options: protons all particles atomic m
    7·2 answers
  • If you have 10.0 grams of citric acid with enough baking soda (nahco3 how many moles of carbon dioxide can you produce?
    6·2 answers
  • What is the use of liquid electrolyte?​
    13·1 answer
  • How many moles is 118 grams of Argon
    14·1 answer
  • ASAP HELP
    12·2 answers
  • Which is easier to compress, a gas or a solid? Explain your answer.
    6·2 answers
  • Two types of liquids, two types of gases, two types of solids.
    9·2 answers
  • What is the limiting reagent when 9.517 g of Fe is allowed to react with 19.34 g of water according to
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!