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yan [13]
4 years ago
9

What can you conclude if no precipitate forms when hcl is added to an unknown solution?

Chemistry
1 answer:
Harlamova29_29 [7]4 years ago
8 0
If HCl is poured on an unknown substance and no precipitate forms it can be concluded that the substance is not a base or an alkaline substance. HCl is an acid and acids and bases always react to form a salt and water. The precipitate that would be expected to form would be the salt and the water formed would be in the solution. 
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If 0.0262 mol of cacl2 is dissolved in water to make a 0.520 m solution, what is the volume of the solution?
Oduvanchick [21]
Cacl2  dissolve   in  water   according  to the  following  equation

Cacl2 + H2O  =  Ca(OH) + Hcl
Volume=  moles/molarity
  The  reacting  ratio    between CaCl2  to  Ca(OH)  is   1:1
therefore  moles  of  solution   is  also  0.0262  moles hence  volume   is  =
0.0262mol/  0.52mol/l =  0.0504L  or50.4ml
5 0
3 years ago
Convert 0.859 mg to cg.<br> Help me plz :(
andrey2020 [161]

Answer:

0.0859

Explanation:

7 0
3 years ago
There are diffrent types of cells for every job in your body. How do we refer to those cells that develop differently?
kotykmax [81]

<u>Answer:</u>

Those cells that develop differently are referred  to Specialised Cells.

<u> </u><u>Explanation:</u>

Specialised cells are the one that is assigned to perform a specific role. Every specialised cell in the body is assigned to do their own job. The special features in them help them to perform their functions effectively.

Examples of specialised cells are- red blood cells (they are responsible to carry oxygen in the body), nerve cells (specialises in transmitting electrical signals) and muscle cells (brings body parts together).  

3 0
4 years ago
Which characteristics from the list below cause terrestrial planets to be more likely to have life than Jovian planets?
ddd [48]

Answer:

the Mercury planet is likely to have life but the earth as a lot of oxygen

6 0
3 years ago
What happens chemically when quick lime is added to water?
sineoko [7]

Answer:

CaO + H20 => Ca(OH)2

Explanation:

quick lime ia a oxyde and when it reacts with water it gives hydroxide

5 0
3 years ago
Read 2 more answers
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