#2 Potassium carbonate (K2CO3) has one potassium atom bonded to carbon, and that carbon is also bonded to three oxygens. Their electronegativities are shown in the list:
*K:0.08
*C:2.55
*O:3.44
How would you describe the bonds (K-C and C-O) in this molecule?
Question #3
What is true about kinetic energy?
Question#11 Select the correct answer from the list
_______________is a method of extraction of pomace that is cheaper, enviromentally friendly, has reduced waste, and requires simpler facilities.
To describe the bonds in potassium carbonate (K2CO3), we need to consider the electronegativity values of potassium (K), carbon (C), and oxygen (O). Electronegativity is a measure of an atom's ability to attract electrons in a chemical bond.
For the K-C bond:
The electronegativity difference between K and C is calculated by subtracting the electronegativity of potassium (0.08) from that of carbon (2.55). The result is 2.47.
Based on this difference, the K-C bond is considered to be largely ionic. Since the electronegativity difference is greater than 1.7, the carbon atom can be considered as having a partial negative charge, while the potassium atom has a partial positive charge. This unequal sharing of electrons makes the bond primarily ionic in character.
For the C-O bonds:
The electronegativity difference between C and O is calculated by subtracting the electronegativity of carbon (2.55) from that of oxygen (3.44). The result is 0.89.
Based on this difference, the C-O bonds are considered to be polar covalent. The electronegativity difference is moderate, between 0.5 and 1.7, indicating that the carbon and oxygen atoms share electrons but not equally. The oxygen atom, being more electronegative, attracts the shared electrons more strongly and carries a partial negative charge, while carbon carries a partial positive charge.
In summary, the K-C bond in potassium carbonate is mainly ionic, while the C-O bonds are polar covalent.