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4 years ago

Which statement correctly describes metallic bonds?

Chemistry

2 answers:

kotegsom [21]4 years ago

4 0

There are 3 types of chemical bonds:

1) Ionic: A bond formed by the transfer of electrons from from one atom to the other

2) Covalent : A bond formed by sharing of electrons between atoms

3) Metallic: A bond formed by the electrostatic attraction between metal ions and delocalised electrons.

Metals are electropositive, i.e. they have a tendency to lose electron. In a metallic lattice, this creates positively charged ions surrounded by negatively charged electrons which are held by electrostatic forces of attraction.

Ans: E) They form because electrons move freely between atoms.

RUDIKE [14]4 years ago

3 0

Answer is The charge of the purple circles should be positive because they represent the nuclei.

Everyone ignore this answer it is for a different question.

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Why do elements undergo chemical reactions?

DaniilM [7]

Answer:

They have to

Explanation:

It occurs when 2 or more molecules interact and their bonds change

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4 years ago

Differentiate between satured and unsatured fats

olga_2 [115]

Answer:

...

Explanation:

in saturated fats there is no double bond between the acids and are tightly packed and unsaturated fats arent tight and loosely packed/put together

saturated- solid at room temperature

unsaturated= liquid at room temperature

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3 years ago

Which three elements are combined in magnesium carbonaye

meriva

Answer:

Magnesium, Carbon and Oxygen.

Explanation:

7 0

3 years ago

Read 2 more answers

Calculate the formal charge on each of the oxygen (O) atoms labeled a, b, and c in the following Lewis structure.

Pepsi [2]

6-(2+4)

6-6

=0 Formal charge of O atoms a and b is 0

6-(1+6)

6-7

= -1 Formal charge for O atoms c is -1

Answer 0,0,-1

7 0

3 years ago

For the following reaction, the equilibrium constant Kc is 2.0 at a certain temperature. The reaction is endothermic. What do yo

jeyben [28]

Answer:

The correct answer is : 'the concatenation of NO will increase'.

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.

This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

If the temperature is increased, so according to the Le-Chatlier's principle , the equilibrium will shift in the direction where increase in temperature occurs.

$2NOBr(g)\rightleftharpoons 2NO(g) + Br_2(g)$

As, this is an endothermic reaction, increasing temperature will add more heat to the system which move equilibrium in the forward reaction with decrease in temperature. Hence, the equilibrium will shift in the right direction.

So, the concatenation of NO will increase.

7 0

4 years ago