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3 years ago

A neutral atom with two valence electrons would form

Chemistry

1 answer:

Alinara [238K]3 years ago

3 0

Answer:

ionic bond

Explanation:

as it donate 2 electron and formed ionic bond

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A compound takes on:

tangare [24]

B. A mixture of the properties of the elements that compose it.

7 0

4 years ago

Allison needs 18 liters of a 5% saline solution. She has a 1% solution and a 10% solution available. How many liters of the 1% s

kolezko [41]

Answer:

10 liters of the 1% solution and 8 liters of the 10% solution she should mix to make the 5% solution.

Explanation:

Let the volume of 1% acid solution used to make the mixture = x L

So, the volume of 10% acid solution used to make the mixture = y L

Total volume of the mixture = x + y = 18 L .................. (1)

For 1% acid solution:

C₁ = 1% , V₁ = x L

For 10% acid solution :

C₂ = 10% , V₂ = y L

For the resultant solution of sulfuric acid:

C₃ = 5% , V₃ = 18 L

Using

C₁V₁ + C₂V₂ = C₃V₃

1×x + 10×y = 5×18

So,

x + 10y = 90 .................. (2)

Solving 1 and 2 we get,

x = 10 L

y = 8 L

Thus,

10 liters of the 1% solution and 8 liters of the 10% solution she should mix to make the 5% solution.

7 0

3 years ago

Calculate the solubility of ( = ) in moles per liter. Ignore any acid–base properties. s = mol/L Calculate the solubility of ( =

BaLLatris [955]

This is an incomplete question, here is a complete question.

Calculate the solubility of each of the following compounds in moles per liter. Ignore any acid-base properties.

CaCO₃, Ksp = 8.7 × 10⁻⁹

Answer : The solubility of CaCO₃ is, $9.33\times 10^{-5}mol/L$

Explanation :

As we know that CaCO₃ dissociates to give $Ca^{2+}$ ion and $CO_3^{2-}$ ion.

The solubility equilibrium reaction will be:

$CaCO_3\rightleftharpoons Ca^{2+}+CO_3^{2-}$

The expression for solubility constant for this reaction will be,

$K_{sp}=[Ca^{2+}][CO_3^{2-}]$

Let solubility of CaCO₃ be, 's'

$K_{sp}=(s)\times (s)$

$K_{sp}=s^2$

$8.7\times 10^{-9}=s^2$

$s=9.33\times 10^{-5}mol/L$

Therefore, the solubility of CaCO₃ is, $9.33\times 10^{-5}mol/L$

4 0

3 years ago

Which atoms in the table are the same element and with what reasoning?

fenix001 [56]

The atoms that are the same element are atoms 1 and 2, because they have the same number of protons (option D).

<h3>What is an element?</h3>

Element is one of the simplest chemical substances that cannot be decomposed in a chemical reaction or by any chemical means and made up of atoms all having the same number of protons.

The atoms of an element have the same number of protons, which is the atomic number.

According to the table given above, three atoms and their respective proton, electron and neutron number are given.

It can be said that atoms 1 and 2 are of the same element, because they have the same number of protons.

Learn more about elements at:

#SPJ1

5 0

1 year ago

Chloral, Cl3C―CH═O, reacts with water to form the sedative and hypnotic agent chloral hydrate, Cl3C―CH(OH)2. Draw Lewis structur

Paul [167]

Answer:

See attached figure.

Explanation:

Hello there!

In this case, according to the given substances, we recall the concept of Lewis structure as such showing the bonds and valence electrons each atom has in the molecule. Thus, since chlorine atoms have seven valence electrons, carbon atoms four of them, hydrogen atoms have 1 and oxygen atoms 6, we are able to draw such Lewis dot structures, by obeying the octet as shown on the attached figure.

Best regards!

4 0

3 years ago