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3 years ago

The electrons in a metallic bond can be describe as

Chemistry

1 answer:

gtnhenbr [62]3 years ago

8 0

Answer:

in metallic bonds, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize. That is to say, instead of orbiting their respective metal atoms, they form a “sea” of electrons that surrounds the positively charged atomic nuclei of the interacting metal ions. ... Metals are shiny.

Explanation: here is your answer for your please rate me the most brainlest in let me know if right

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A student tested a sample of carbon (C) by combining it with water. There was no reaction between the carbon and water. The stud

svp [43]

I disagree. Carbon is not a group 18 element. This is incorrect because elements closer to the top of the group are less reactive than those at the bottom of the group. Group 18 elements are noble gases and carbon, a group 14 element, is a non metal.

3 0

3 years ago

Van der waals interactions result when hybrid orbitals overlap. a hydrogen atom loses an electron. molecules held by ionic bonds

vovangra [49]

Van der waals interactions are the electrical interactions between two or more atoms and even molecules but the inter-molecular attractions between the molecules are not exactly strong, in fact they are the weakest. And these Van der waals interactions are happened when electrons are not symmetrical distributed in a molecule.

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4 years ago

Given the following equation: 4 Fe + 3022 Fe2O3 What mass of iron is needed

icang [17]

Answer : The mass of iron needed is 29.5 grams.

Explanation : Given,

Mass of $O_2$ = 12 g

Molar mass of $O_2$ = 32 g/mol

First we have to calculate the moles of $O_2$ .

$\text{Moles of }O_2=\frac{\text{Given mass }O_2}{\text{Molar mass }O_2}$

$\text{Moles of }O_2=\frac{12g}{32g/mol}=0.375mol$

Now we have to calculate the moles of $Fe$

The balanced chemical equation is:

$4Fe+3O_2\rightarrow 2Fe_2O_3$

From the reaction, we conclude that

As, 3 moles of $O_2$ react with 4 moles of $Fe$

So, 0.375 mole of $O_2$ react with $\frac{4}{3}\times 0.375=0.5$ mole of $Fe$

Now we have to calculate the mass of $Fe$

$\text{ Mass of }Fe=\text{ Moles of }Fe\times \text{ Molar mass of }Fe$

Molar mass of $Fe$ = 59 g/mole

$\text{ Mass of }Fe=(0.5moles)\times (59g/mole)=29.5g$

Therefore, the mass of iron needed is 29.5 grams.

8 0

4 years ago

Identify the process in which the entropy increases. Identify the process in which the entropy increases. the phase transition f

diamong [38]

Answer:

The phase transition from a solid to a gas.

Explanation:

Entropy is related to the moles of gases available. The more gaseous moles, the higher the entropy.

Identify the process in which the entropy increases.

the phase transition from a solid to a gas. YES. There are more gaseous moles available so entropy increases.
a decrease in the number of moles of a gas during a chemical reaction. NO. This causes a decrease in entropy.
the phase transition from a liquid to a solid. NO. There is almost no change in the entropy in this process.
the phase transition from a gas to a liquid. NO. There is a decrease in entropy in this process.
the phase transition from a gas to a solid. NO. There is a decrease in entropy in this process.

7 0

4 years ago

I need help how do you do this ?

Karolina [17]

Sorry, haven't came across that as of yet.

7 0

4 years ago