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crimeas [40]
3 years ago
6

Why do non metal ions change from being soluble in solution to insoluble at the surface of the cathode

Chemistry
1 answer:
snow_lady [41]3 years ago
8 0

Answer:

During electrolysis of Copper (II) Chloride, metal ions change from being soluble in the solution to insoluble at the surface of the cathode because metals are not soluble in water ; gains two electrons.

Explanation:

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Complete and balance each of the following equations. If no reaction occurs, enter NOREACTION.
Tatiana [17]

Answer

Part A:

Given equation:

KI_{(aq)}+BaS_{(aq)}\rightarrow

The above equation is an example of a double replacement reaction. A double replacement (or double displacement) reaction is a reaction in which the positive and negative ions of two ionic compounds exchange.

Note: The oxidation number of:

K = +1

I = -1

Ba = +2

S = -2

So, the complete chemical equation including phases of the given reaction is:

2KI_{(aq)}+BaS_{(aq)}\rightarrow BaI_{2(aq)}+K_2S_{(s)}

Part B:

Given equation:

KCl_{(aq)}+CaS_{(aq)}\rightarrow

Also, the equation is an example of a double replacement reaction.

Note: The oxidation number of:

K = +1

Cl = -1

Ca = +2

S = -2

The complete chemical equation including phases of the given reaction is:

2KCl_{(aq)}+CaS_{(aq)}\rightarrow K_2S_{(s)}+CaCl_{2(aq)}

5 0
2 years ago
How many grams of lithium hypochlorite (LiClO) are there in 0.594 moles?
Flauer [41]

Answer : The mass of lithium hypochlorite are, 34.7 grams.

Explanation : Given,

Moles of LiClO = 0.594 g

Molar mass of LiClO = 58.4 g/mol

Expression used :

\text{ Mass of }LiClO=\text{ Moles of }LiClO\times \text{ Molar mass of }LiClO

Now put all the given values in this expression, we get:

\text{ Mass of }LiClO=(0.594moles)\times (58.4g/mole)

\text{ Mass of }LiClO=34.7g

Therefore, the mass of lithium hypochlorite are, 34.7 grams.

3 0
4 years ago
A patient needs to be given exactly 1000ml of 15% (w/v) intravenous glucose solution. The stock solution is 35% (w/v). How many
mezya [45]
In this question, the patient needs to be given exactly <span>1000ml </span>of a 15.0%. The content of the glucose should be: 
weight= volume * density* concentration
1000ml * 1mg/ml *15%= 150mg.

The stock solution is 35%, then the amount needed in ml would be: 
weight= volume * density* concentration
150mg= volume * 1mg/ml *35%
volume= 150/35%= 3000/7= 428.5ml
8 0
4 years ago
Read 2 more answers
Identify 5 factors of weather
cluponka [151]

Answer:

"The five factors are: the latitude zone, the elevation of the land, topography (landforms), ocean currents and winds."

Explanation:

5 0
3 years ago
Read 2 more answers
3. What is the frequency of a photon that has 3.82 x 10^-20 J of energy? ​
NNADVOKAT [17]

Answer:bto the power of 5

Explanation:3. What is the frequency of a photon that has 3.82 x 10^-20 J of energy? ​

8 0
3 years ago
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