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Damm [24]
4 years ago
15

1. Complete the reaction illustrating the hydration reaction of a strong electrolyte CaCl2​

Chemistry
1 answer:
makkiz [27]4 years ago
8 0

Answer:

CaCl₂(s) ⟶ Ca²⁺(aq) + 2Cl⁻(aq)

Explanation:

When the calcium chloride dissolves. the calcium and chloride ions leave the surface of the solid and go into solution as hydrated ions.

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Solids < liquids < gases
Tresset [83]

Answer:

space between particles

Explanation:

Properties of gases:

Molecule of gases randomly move everywhere and occupy all available space.

Gases don't have definite volume and shape and take the shape and volume of container in which it present.

Their densities are very low as compared to the liquid and solids.

Gas molecules are at long distance from each other therefore by applying pressure gases can be compressed.

The very weak inter molecular forces are present between gas molecules.

Properties of Liquid:

Liquid have definite volume but don,t have definite shape.

Their densities are high as compared to the gases but low as compared to the solids.

In liquid, molecules are close to each other and have greater inter molecular forces as compared to the gas molecules.

Properties of solids:

Solids have definite volume and shape.

In solids molecules are tightly pack and very close to each other.

Their melting and boiling point are every high.

The densities of solids are also very high as compared to the liquid and gas.

There are very strong inter molecular forces are present between solid molecules.

8 0
3 years ago
A155-g sample of a unknown substance was heated from 25.0°C to 40.0°C.In the process, the substance absorbed 5696 J of energy. W
Iteru [2.4K]
The answer is: (5696 J) / (155 g) / (40.0 - 25.0)°C = 2.45 J/g·°C 
3 0
4 years ago
PLS HELP<br><br> Answer this question and I will mark you the braninliest! &lt;3
Tpy6a [65]

Answer:

the left one

Explanation:

heavier means it goes faster

5 0
3 years ago
How many valence electrons does B (boron) have?<br> A. 13<br> B. 5<br> C. 10<br> D. 3
pshichka [43]

Answer:

Boron has 3 valence electrons

8 0
3 years ago
The first part of a balanced chemical equation for a chemical reaction is shown below:
Bond [772]

Answer:

The answer to your question is 6

Explanation:

Data

              Cu  +  2AgNO₃   ⇒  

To find the answer, count the number of each element in the reactants

Element                Quantity

Copper                        1

Silver                           2

Nitrogen                      1

Oxygen                        6

Then, in the products, there must be 6 oxygens so in the products there must be 6 oxygens so the reaction is balanced.              

8 0
3 years ago
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