What does polar and non polar mean?

2 answers:

7 0

Polar is the separation of electric charge leading to a molecule or its chemical groups having an electric dipole or multipole moment.

Non-polar is one in which the electrons are distributed more symmetrically and thus does not have an abundance of charges at the opposite sides.

Fantom [35]3 years ago

6 0

This means that in a polar bond, the electronegativity of the atoms will be different. For nonpolar bonds the electronegativity of the atoms will be equal. In a polar bond you will have an unequal sharing of electron pairs which causes a molecular dipole. Bonds will cancel or not depending on the shape of the molecule.

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How many moles of ions are released when 0.27 mole of cobalt chloride is dissolved in water?

egoroff_w [7]

0.81 moles

Explanation:

cobalt chloride when dissolved in water dissociate into cobalt and chloride ions as shown;

CoCl₂ (s) → [Co²⁺](aq) + 2[Cl⁻] (aq)

The mole ratio between CoCl₂ and [Co²⁺] is 1 ; 1 while the mole ratio between CoCl₂ and [Cl⁻] is 1 : 2

Therefore; 0.27 moles of CoCl₂ will form;

(1 * 0.27) = 0.27 moles of [Co²⁺] ions

(2 * 0.27) = 0.54 moles of [Cl⁻] ions

Total moles of dissociated ions are;

0.27 + 0.54

= 0.81 moles

4 0

3 years ago

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Shalnov [3]

Answer:

Explanation:The buffer is a mixture of ammonia (NH3) and ammonium (NH4+). ... Since ammonia (NH3) is a weak base, it will have a pH above 7 and since ammonium (NH4+) is a weak acid, it will have a pH below 7. Ammonia (NH3) is a weak base and ammonium (NH4+) is a weak acid. Ammonia (NH3) is the conjugate base of ammonium (NH4+).

7 0

3 years ago

At 6pm, you see logs piled up for a campfire. Later you see flames and feel heat from it. At 8pm, only smoldering ashes remain.

mr_godi [17]

The process that took place is called oxidation or burning where wood was burnt into ashes.

<h3>Explanation:</h3>

Wood is an organic compound formed of different types of carbohydrates, proteins and lipids. These components do have carbon oxygen hydrogen as most abundant atoms and also has some amount of nitrogen, phosphorous, and other metal ions like magnesium, calcium etc.

When the logs were burnt, the chemical reaction took place between the atmospheric oxygen and the atoms present in the wood, forming different oxides. As carbon was the most abundant atom present, a huge smoke containing carbon dioxide and carbon monoxide evolved. The hydrogen became the water vapour, and other gases were also formed like nitrogen dioxide, sulphur dioxide etc. These gases went off into atmosphere. The rest that were left behind were mixture of unburnt part of wood as well as the solid metal oxides. There were unburnt particles of carbon mixed with them too.