Do anyone know which of these are covalent or ionic

Sodium Chloride
Sodium Carbonate
Sodium Bicarbonate
Potassium Chloride
Sucrose
Copper(II)Sulfate
Corn Starch
Corn Oil
Rubbing Alcohol

To determine whether a compound is covalent or ionic, you can consider the elements involved and their electronegativity difference.

- Sodium Chloride (NaCl) is an ionic compound because it is composed of a metal (sodium) and a non-metal (chlorine).
- Sodium Carbonate (Na2CO3) is an ionic compound because it contains a metal (sodium) and polyatomic ions (carbonate).
- Sodium Bicarbonate (NaHCO3) is a covalent compound because it contains a metal (sodium) and a polyatomic ion (bicarbonate), which is held together by covalent bonds.
- Potassium Chloride (KCl) is an ionic compound because it contains a metal (potassium) and a non-metal (chlorine).
- Sucrose (C12H22O11) is a covalent compound because it is made up of carbon, hydrogen, and oxygen atoms bonded together by covalent bonds.
- Copper(II) Sulfate (CuSO4) is an ionic compound because it contains a metal (copper) and polyatomic ions (sulfate).
- Corn Starch (C6H10O5)n is a covalent compound because it is composed of carbon, hydrogen, and oxygen atoms bonded together in a large, repeating structure.
- Corn Oil is a covalent compound because it is made up of carbon, hydrogen, and oxygen atoms held together by covalent bonds.
- Rubbing Alcohol (isopropyl alcohol - C3H7OH) is a covalent compound because it consists of carbon, hydrogen, and oxygen atoms bonded together through covalent bonds.

To determine whether a compound is covalent or ionic, we need to understand the nature of covalent and ionic bonds.

Covalent bonds occur when two nonmetals share electrons. These compounds typically form between atoms with similar electronegativities, resulting in a sharing of electrons. Covalent compounds tend to have low melting and boiling points, exist in various physical states, and do not conduct electricity in their pure form.

Ionic bonds, on the other hand, involve the transfer of electrons from a metal to a nonmetal. This electron transfer leads to the formation of positive and negative ions that attract each other and form a crystal lattice. Ionic compounds generally have high melting and boiling points, solid at room temperature, and conduct electricity in their molten or dissolved state.

Now, let's determine the nature of each compound you've listed:

1. Sodium Chloride (NaCl): This compound consists of a metal (sodium) and a nonmetal (chlorine). Sodium tends to lose an electron and chlorine tends to gain an electron, resulting in the formation of Na+ and Cl- ions. Therefore, sodium chloride is an ionic compound.

2. Sodium Carbonate (Na2CO3): This compound also contains sodium, a metal. Carbonate (CO3) is a polyatomic ion consisting of carbon and oxygen atoms. Since sodium carbonate contains both a metal and a polyatomic ion, it is an ionic compound.

3. Sodium Bicarbonate (NaHCO3): Similar to sodium carbonate, sodium bicarbonate contains both a metal (sodium) and a polyatomic ion (bicarbonate). Hence, it is also an ionic compound.

4. Potassium Chloride (KCl): Like sodium chloride, this compound consists of a metal (potassium) and a nonmetal (chlorine). Therefore, it is an ionic compound.

5. Sucrose (C12H22O11): Sucrose is a carbohydrate and a molecular compound. It is made up of carbon, hydrogen, and oxygen atoms held together by covalent bonds. Hence, sucrose is a covalent compound.

6. Copper(II) Sulfate (CuSO4): This compound contains a metal (copper) and a polyatomic ion (sulfate). Therefore, copper(II) sulfate is an ionic compound.

7. Corn Starch: Corn starch is a complex carbohydrate made up of long chains of glucose molecules. It consists mainly of carbon, hydrogen, and oxygen atoms held together by covalent bonds. Hence, corn starch is a covalent compound.

8. Corn Oil: Corn oil is a type of fat composed of fatty acid molecules. It contains carbon, hydrogen, and oxygen atoms bonded through covalent bonds. Like other fats and oils, corn oil is a covalent compound.

9. Rubbing Alcohol (Isopropyl Alcohol, C3H8O): Rubbing alcohol is an alcohol compound made up of carbon, hydrogen, and oxygen atoms. It exists in a covalent form.

In summary, the compounds Sodium Chloride, Sodium Carbonate, Sodium Bicarbonate, and Potassium Chloride are ionic compounds. Sucrose, Corn Starch, Corn Oil, and Rubbing Alcohol are covalent compounds.