What is the main distinction between ionic and covalent bonding?

Answers

Answer 1

Answer:

The main distinction between ionic and covalent bonding is that ionic bonding is the complete transfers of electrons between atoms whereas covalent bonding is the sharing of electrons between atoms.

Answer 2

Answer:

Final answer:

The main difference between ionic and covalent bonding is the way electrons participate in the bonding. In ionic bonds, electrons are transferred and attract each other due to opposite charges. In contrast, covalent bonding involves sharing of electron pairs between atoms, usually resulting in stronger bonds.

Explanation:

The main distinction between ionic and covalent bonding is the way in which the electrons are involved. In an ionic bond, electrons transfer from one atom to another, resulting in a positive and a negative ion that attract each other due to opposite charges. The energy change associated with ionic bonding depends on three key processes; the ionization of an electron from one atom, the acceptance of the electron by the second atom, and the Coulomb attraction of the resulting ions.

On the other hand, the covalent bond involves sharing of electrons between two atoms. These electrons move back and forth between the atoms and do not permanently stay with one atom. Because of this shared electron pair, covalent bonds are stronger than ionic bonds.

Deciding whether a bond is ionic or covalent often involves considering the types of atoms involved and their relative positions on the periodic table. Bonds between two nonmetals are generally covalent, while bonding between a metal and a nonmetal is often ionic by nature.

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When 5 grams of salt dissolve in 30 grams of water, what is the resulting mass of the mixture?

Answers

The answer is 35 grams.

When we mix salt and water, salt will dissolve. Still, it mass does not disappear, but remains intact. Mass cannot be destroyed. When salt is dissolved in the water, salt molecules are only re-positioned, but all the molecules are present as well as their mass. So if you add 5 grams of salt in 30 grams of water, the resulting mass will be 5 + 30 grams, which is 35 grams.

Answer: The resulting mass would be 35 grams.

Explanation: Mass cannot be destroyed, there would be no need to re-measure the mass. Therefore, if we add the masses we get 35.

NEED HELP! ASAP 30 POINTS!!
Fill the blanks

Answers

Answer:

Explanation:

In ions, protons are never taken or given. Only the number of electrons are changed

Br^1- gains 1 electron, so the number of electrons increases from 35 to 36. No protons are taken away, to the number of protons and the atomic number of Br1- is still 35, and the number of neutrons is still 45.

You have two bottles of water. One bottle is left outside in the sun for two hours. The other is left in an air-conditioned room for the same amount of time. What would you expect to observe after the two hours?The bottle left outside will have lower vapor pressure than the bottle from the room.

The bottle left outside will have the same vapor pressure as the bottle inside the room because they both contain water.

The bottle left outside will have higher vapor pressure than the bottle from the room.

No change to either bottle.

Answers

You have two bottles of water. One bottle is left outside in the sun for two hours. The other is left in an air-conditioned room for the same amount oftime. After 2 hours, I would expect that the bottle left outside will have higher vapor pressure than the bottle from the room.

Mass of 2.88x10^-4 mol of ascorbic acid

Answers

Molar mass C₆H₈O₆ = 176.12 g/mol

1 mole ------------------ 176.12 g
2.88x10⁻⁴ mole ------- ?

mass = 2.88x10⁻⁴ * 176.12 / 1

mass ≈ 0.05072 g

hope this helps!

A chemical reaction in which two or more substances undergo a chemical union to form a more complex substance is a _______ reaction. A. double replacement
B. substitution
C. decomposition
D. combination

Answers

A chemical reaction in which two or more substances undergo a chemical union to form a more complex substance is a combination reaction.

What is a chemical reaction?

Chemical reactions are defined as reactions which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical reaction.

There are several characteristics of chemical reactions like change in color, change in state , change in odor and change in composition . During chemical reaction there is also formation of precipitate an insoluble mass of substance or even evolution of gases.

There are three types of chemical reactions:

1) inorganic reactions

2)organic reactions

3) biochemical reactions

During chemical reactions atoms are rearranged and changes are accompanied by an energy change as new substances are formed.

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Answer : The correct option is, (D) Combination

Explanation :

Double replacement reaction : A chemical reaction in which a positive cation and a negative anion of the two reactants exchange places to give two new products or compounds.

The general representation of this reaction is,

$AB+CD\rightarrow AD+CB$