Question

the type of bond that is formed when atoms of opposite charges interact (i.e. na+ and cl-) is called a(n)
covalent bond
hydrogen bond
james bond (sorry i cant resist the pun)
ionic bond
hydrogen bonds are a type of bond that can form
when two atoms of opposite charge come in close proximity.
when two atoms of the same charge come into close proximity.
when two hydrophobic molecules come into close proximity.
when two polar molecules come into close proximity.
using the following terms, briefly explain (2 - 3 sentences) why water is a polar molecule
terms, hydrogen, oxygen, electronegative, electrons, partial positive charge, partial negative charge

Explanation:

• For the first question: Ionic bonds form between atoms of opposite charges (e.g., \(Na^+\) and \(Cl^-\)). Covalent bonds involve sharing electrons. Hydrogen bonds are weaker attractions (not between ions). James Bond is a fictional character (not a chemical bond).
• For the second question: Hydrogen bonds form when two polar molecules (with partial charges) come close. Opposite - charge ions form ionic bonds. Same - charge atoms repel. Hydrophobic interactions are different from hydrogen bonds.
• For the third question: Oxygen is more electronegative than hydrogen. In \(H_2O\), oxygen pulls electrons more, giving it a partial negative charge and hydrogens partial positive charges, making water polar.

Answer:

• First question: Ionic bond
• Second question: when two polar molecules come into close proximity.
• Third question: Oxygen is more electronegative than hydrogen. In \(H_2O\), oxygen pulls electrons more, creating partial charges (\(O\): partial negative, \(H\): partial positive), so water is polar.