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
vladimir1956 [14]
2 years ago
13

Which compound is insoluble in water? (1) KOH (3) Na3PO4 (2) NH4Cl (4) PbSO4

Chemistry
2 answers:
VLD [36.1K]2 years ago
8 0

Ans: 4) PbSO4

Different compounds are soluble in water to a different extent, some of them are completely insoluble in water. Solubility rules help in identifying the water soluble and insoluble compounds.  

Based on the rules:

1) Salts of group IA (Li, Na, K, Rb and Cs) are soluble in water

2) Salts containing NH4+ ions are water soluble

3) All phosphates (PO4³⁻) are insoluble except those containing group IA elements and (NH4)₃PO4

4) All sulfates, SO4²⁻ salts are generally soluble with the exception of Ca2+, Sr2+, Ba2+, Hg₂²⁺, Hg2+, Pb2+ and Ag+

Therefore, among the given examples:

1) KOH contains group 1A (K) therefore soluble

2) Na3PO4 contains group IA element (Na), therefore soluble

3) NH4Cl contains NH4+ ion, therefore soluble

4) Sulfate of lead (Pb) is insoluble

Veseljchak [2.6K]2 years ago
3 0
The answer is (4) PbSO₄.

You might be interested in
What is Boyle's law​
Vadim26 [7]
Search it up a lot of information should appear. Try that
3 0
3 years ago
Read 2 more answers
Is Mg a metal non metal or noble gas
madam [21]
It is a metal
hope it helps
8 0
3 years ago
What mass of potassium chloride, KCl, is produced when 12.6 g of oxygen, 02, is produced?
blagie [28]

Mass of KCl= 19.57 g

<h3>Further explanation</h3>

Given

12.6 g of Oxygen

Required

mass of KCl

Solution

Reaction

2KClO3 ⇒ 2KCl + 3O2

mol O2 :

= mass : MW

= 12.6 : 32 g/mol

= 0.39375

From the equation, mol KCl :

= 2/3 x mol O2

= 2/3 x 0.39375

=0.2625

Mass KCl :

= mol x MW

= 0.2625 x 74,5513 g/mol

= 19.57 g

4 0
2 years ago
!!!!HURRY!!!! What reaction is endothermic?
Alex

Answer:

The reaction in which heat is absorbed from the surrounding is called endothermic reaction.

so

I think it's answer is 2nd option.

4 0
3 years ago
What observations can you make about this group of people? Name one inference you can make from your observations.​
Stells [14]

Answer:

no no no who are these some look good but are black what is this

7 0
2 years ago
Read 2 more answers
Other questions:
  • Consider the chemical equation for the production of water: 2 H2+O2→2 H2O. If 100 grams of oxygen gas are used, what would the p
    14·1 answer
  • Based on this information what is the most likely reason for refrigerating most foods reduce the rate at which they spoil
    12·1 answer
  • What is metal and non metal
    6·2 answers
  • How many square centimeters are in an area of 8.10inch2 ?
    10·1 answer
  • Number 3 please. I have no hope
    15·1 answer
  • Rearrange the elements in the order of increasing first ionization energy. Place the element symbol with the lowest first ioniza
    11·1 answer
  • What variables affect mass? (include observations)​
    11·1 answer
  • Neutrons have neither charge nor mass.<br> TRUE<br> FALSE
    10·1 answer
  • Is it okay ?<br>off it's difficult to find a pic for a boy ​
    14·2 answers
  • Help i dont get it
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!