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3 years ago

Derive the net ionic equation for the reaction between sodium alginate and CaCl2

Chemistry

1 answer:

Soloha48 [4]3 years ago

7 0

Answer:

2NaC₆H₇O₆ + CaCl₂ -> 2NaCl + Ca(C₆H₇O₆)₂

C₆H₇O₆⁻ + Cl⁻ -> Cl⁻ + C₆H₇O₆⁻

Explanation:

Here the reaction which is taking place is a double displacement reaction.

In this there is only an exchange of bonds and no chemical reaction.

Here the ions remain exactly the same

C₆H₇O₆⁻ + Cl⁻ -> Cl⁻ + C₆H₇O₆⁻

We can balance the skeletal equation

NaC₆H₇O₆ + CaCl₂ -> NaCl + Ca(C₆H₇O₆)₂

First we balance Chlorine atoms by writing 2NaCl

NaC₆H₇O₆ + CaCl₂ -> 2NaCl + Ca(C₆H₇O₆)₂

Now in order to balance Na atoms we make it 2NaC₆H₇O₆

2NaC₆H₇O₆ + CaCl₂ -> 2NaCl + Ca(C₆H₇O₆)₂

In this equation all atoms are balanced.

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Insoluble substances can dissolve in all solvents. True or false

nadezda [96]

I think it would be false

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4 years ago

A balloon is floating around outside your window. The temperature outside is 21 ∘C , and the air pressure is 0.700 atm . Your ne

Andreyy89

Answer:

$V=162L$

Explanation:

Hello,

In this case, we can compute the required volume by using the ideal gas equation as shown below:

$PV=nRT$

Thus, solving for the volume and considering absolute temperature (in Kelvins), we obtain:

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4 years ago

An atom in an excited state contains more of what type of energy than the same atom in the ground state? An atom in an excited s

kupik [55]

Answer: An atom in an excited state contains more of kinetic energy than the same atom in the ground state.

Explanation:

Kinetic energy is the energy acquired by an object due to its motion. And, thermal energy is the internal energy of an object arisen because of the kinetic energy present within the molecules of the object.

Potential energy is the energy acquired by an object due to its position.

The total energy present at the center of mass of an object is known as mass-energy.

So, when an atom gets excited then it means it is gaining kinetic energy due to which it moves from its initial position after getting excited.

Thus, we can conclude that an atom in an excited state contains more of kinetic energy than the same atom in the ground state.

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3 years ago

How many electrons can occupy an orbital

8_murik_8 [283]

Answer:

2 electrons

Explanation:

There are five 3d orbitals, each of which can hold up to 2 electrons, for 10 total electrons. An orbital is described by the principle quantum number, n, the angular momentum quantum number, l, and the magnetic quantum number, ml.

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2 years ago

Which force is most responsible for binding together an atom’s protons and neutrons?

vampirchik [111]

Answer:

Hello There!!

Explanation:

I believe the answer is nuclear.

hope this helps,have a great day!!

~Pinky~

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3 years ago

Read 2 more answers