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mina [271]
3 years ago
9

What kind of bond is present in NaBr?

Chemistry
2 answers:
FinnZ [79.3K]3 years ago
5 0

<u>Answer:</u>

<em>D Ionic bond </em>

<em></em>

<u>Explanation:</u>

Atomic number = number of electrons = number of protons.

Atomic number of sodium is 11

So the atom contains 11 protons and 11 electrons

To find the number of neutrons we make use of the formula  

Mass number - atomic number = number of neutrons

From the periodic table we know mass number of sodium is 23

So number of neutron = 23 - 11 = 12.

When a sodium atom loses an electron it will have 11 positive protons and 10 negative electrons. Since 1 positive charge is more Na becomes Na^+.

Positively charged ion is called as cation

Bromine atomic number is 35 so it has 35 protons and 35 electrons.

When it gains an electrons it will have 35 positive protons and 36 negative electrons since 1 negative charge is more Br becomes Br^-.

Negatively charged ion is called as anion.

The electrostatic attraction between Na^+ and Br^- due to the opposite charges gets attracted and forms a bond called ionic bond in NaBr

Look at the diagram of NaCl for example  

Nostrana [21]3 years ago
3 0

Answer:

D. Ionic bond

Explanation:

Sodium loses an electron to bromine

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Identify each of the following half-reactions as either an oxidation half-reaction or a reduction half-reaction.
koban [17]

Answer:

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reason: there is loss of electrons.

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reason: There is reduction of electrons.

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andrezito [222]
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3 0
3 years ago
In a reaction, gaseous reactants form a liquid product. The heat absorbed by the surroundings is 1.1 MJ, and the work done on th
ratelena [41]

Answer: \Delta E is 1155 kJ

Explanation:

According to first law of thermodynamics:

\Delta E=q+w

\Delta E=Change in internal energy

q = heat absorbed or released

w = work done or by the system

w = work done by the system=-P\Delta V  {Work done on the system is positive as the final volume is lesser than initial volume}

w =13.2kcal=55.2kJ   (1kcal=4.184 kJ)

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4 0
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A solution that contains the maximum amount of solute that is soluble at a given temperature is said to be —
solniwko [45]

Answer: Saturated

A solution that contains the maximum amount of solute that is soluble at a given temperature is said to be saturated.

Explanation:

A Saturated solution is one that contains as much (i.e maximum) solute as it can dissolve at that temperature in the presence of undissolved solute particles.

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