What is a bond between a positive and a negative ion called?
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Answer is: ionic bond.
Ionic bond is the electrostatic attraction between oppositely charged ions, cations (positive ions) and anions (negative ions).
For example compound magnesium chloride (MgCl₂) has ionic bond. Magnesium transfers two electrons, form positive cation Mg²⁺, to chlorine, form anion Cl⁻.
Another example, potassium bromide (KBr) is ionic solid, it has ionic bonds.
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Answer:
60.7 %
Explanation:
just did it on edg
B) NaF
C) Ga2Se3
D) ZnO
E) Na3PO4
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The compound that has been least ionic is . The correct option is C.
Ionic compounds have been formed with the electrostatic interaction between the oppositely charged ions. The ionic bond has been formed by the transfer of electrons.
The ionic strength of the compound can be assessed by the difference in the electronegativity of the atoms involved in the bond.
The difference in electronegativity of the following compounds has been as follows:
A. NaCl
Difference = 3 - 0.9
Difference = 2.1
B. NaF
Difference = 4- 0.9
Difference = 3.1
C.
Difference = 2.4 - 1.6
Difference = 0.8
D. ZnO
Difference = 3.5 - 1.6
Difference = 1.9
E.
Difference = 3.5 - 0.9
Difference = 2.6
The ioniccompound with the least difference in electronegativity has been termed to be the least ionic in nature.
The smallest electronegativity difference has been observed in . Thus the compound that has been least ionic is
. The correct option is C.
For more information about the ionic strength of the compound, refer to the link:
The correct answer is C) Ga₂Se₃
Why?
The simplest way to find the ionic character of the bond is to look at the electronegativity difference between the atoms involved in the bonding.
Let's look at each compound individually:
A) NaCl:
B) NaF:
C) Ga₂Se₃:
D) ZnO:
E) Na₃PO₄: (assuming that oxygen is holding the negative charge)
From all these compounds the one with the smallest electronegativity difference is Ga₂Se₃ so it is the least ionic in nature.
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Answer:
6H₂O + 6CO₂ + energy → C₆H₁₂O₆ + 6O₂
Explanation:
Photosynthesis:
It is the process in which in the presence of sun light and chlorophyll by using carbon dioxide and water plants produce the oxygen and glucose.
Carbon dioxide + water + energy → glucose + oxygen
water is supplied through the roots, carbon dioxide collected through stomata and sun light is capture by chloroplast.
Chemical equation:
6H₂O + 6CO₂ + energy → C₆H₁₂O₆ + 6O₂
it is known from balanced chemical equation that 6 moles of carbon dioxide react with the six moles of water and created one mole of glucose and six mole of oxygen.
The reaction completely follow the law of conservation of mass because there are equal number of atoms of each elements on both side of equation.
Law of conservation of mass:
According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.
This law was given by french chemist Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.
For example:
In given photosynthesis reaction:
6CO₂ + 6H₂O + energy → C₆H₁₂O₆ + 6O₂
there are six carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass.