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inna [77]
3 years ago
9

Which type of bonding involves sharing valence electrons, but the valence electrons aren't confined to a specific region between

atoms and instead exist throughout the crystal structure of the material?
A)

Metallic bonding

B)

Covalent bonding

C)

Ionic bonding

D)

Polar covalent bonding
Chemistry
1 answer:
Charra [1.4K]3 years ago
8 0

Answer:

A) Metallic bonding

Explanation:

In metallic bonding, electrons exists as "sea of electrons" which means similar to how waves are free to go anywhere in ocean, these electrons are free to roam around the crystal of the metal.

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How many electrons does calcian have to gain or lose to have 8 valence electrons
skelet666 [1.2K]

Answer:

two electrons

Explanation:

Calcium atoms will lose two electrons in order to achieve the noble gas configuration of argon.

8 0
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Some important points for hadpicking<br>​
Svet_ta [14]

Answer:

Handpicking right?

It is a very simple and easy method of separation. It doesn't require any kind of equipment to proceed. It takes very less time when performed for small quantity of mixture. It doesn't require any kind of preparation

8 0
3 years ago
Which statement is true about sodium hydroxide (NaOH)?
Leokris [45]

Answer: D. It is a base because it increases the concentration of hydroxide ions.

Explanation:  A base is a substance which  dissociates to give hydroxide ions in water.

An acid  is a substance which  dissociates to give hydrogen ions in water.

NaOH\rightarrow Na^++OH^-

So NaOH is a base as it gives OH^- ions when dissolved in water.



5 0
3 years ago
How much energy is released when 2.72 kg of diethyl ether (C4H10O) freezes? The heat of fusion of diethyl ether is 7.27 kJ/ mol
Mama L [17]

Answer:

2672 kj

Explanation:

C4H10 O mole wt =  48 + 10 + 16 =~ 74 gm

27200 gm / 74 gm/mole = 367.57 moles

367.57 moles * 7.27 kj/mole =

3 0
2 years ago
Al (s) + O2 (g)→ Al2O3 (s) what type of chemical reaction is it
Serhud [2]

Explanation:

Correct option is

D

3

The unbalanced chemical reaction is Al(s)+O

2

(g)→Al

2

O

3

(s)

Balance Al atoms by adding 2 to Al on LHS

2Al(s)+O

2

(g)→Al

2

O

3

(s)

Balance O atoms by adding

2

3

to O

2

on LHS

2Al(s)+

2

3

O

2

(g)→Al

2

O

3

(s)

Multiply the whole equation with 2.

4Al(s)+3O

2

(g)→2Al

2

O

3

(s)

This is the balanced chemical equation. The coefficient of O

2

is 3.

6 0
3 years ago
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