Answer:
mushroom
Explanation:
B) Sodium and oxygen
C) carbon and oxygen
D) Carbon and sulfur
Answer:
B) Sodium and oxygen
Explanation:
Ionic bond: This type of bond is formed when there is a complete transfer of electrons from one element to another element. Ionic bond is the bond which is formed between the two oppositely charged ions and are held by the strong electrostatic attraction. This is formed between the atoms which have high differing electronegativities. In this bonding one element is always a metal and another is a non-metal.
Thus,
Out of the options, B involves a metal and a nonmetal which is sodium and oxygen respectively. Thus, they can form a ionic bond on combining.
A) represents 2 metals, C) and D) represents 2 nonmetals and thus, they cannot form an ionic bond.
The complete ionic equation is as follows: H+ + I +K +OHH₂O +K +I
Ionic equation is defined as a chemical equation which represents electrolytes in aqueous solutions and are expressed as dissociated ions. Ions present in aqueous solutions are stabilized by ion dipole interactions with the water molecules which are present.
An ionic equation can be written for any electrolyte which dissociates and reacts with the polar solvent. In a balanced ionic equation , number and type of atoms on each sides of reaction arrow are same. Even the net charge on both sides of the arrow is same.
Strong acids and bases exist as dissociated ions present in the solution and are written in forms of ions in ionic equation.Weak acids and bases do not dissociate completely and hence are written in the form of molecular formula.
Learn more about ionic equations ,here:
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Explanation:
Sodium has atomic number of 11 with electronic configuration of :
Sodium loose it single electron to attain stability of noble gas configuration. While this process electron gets removed from the outer shell of the sodium atom and it gains positive charge of +1.
(Ionization)
Answer: D - a nonpolar covalent bond
Explanation: because opposites attract?
hexagonal
triclinic
cubic
Answer : The correct option is, Cubic.
Explanation :
As there are seven types of crystal systems which are cubic, tetragonal, orthorhombic, monoclinic, triclinic, rhombohedral and hexagonal.
A unit cell is characterized by the axial length (a, b and c) and axial angle parameters which decide the size and shape of the unit cell.
In tetragonal crystal system, and
In hexagonal crystal system, and
In triclinic crystal system, and
In cubic crystal system, and
Hence, the correct option is, Cubic.