Question

1. which substance below is held together by electrons that are being shared?

kcl
licl
hcl
nacl

Explanation:

• KCl (Potassium Chloride): It is an ionic compound. In ionic compounds, electrons are transferred from one atom to another. Potassium (K) donates an electron to chlorine (Cl), forming \(K^{+}\) and \(Cl^{-}\) ions which are held together by electrostatic forces.
• LiCl (Lithium Chloride): Similar to KCl, it is an ionic compound. Lithium (Li) donates an electron to chlorine (Cl), resulting in \(Li^{+}\) and \(Cl^{-}\) ions. The ionic bond is based on electron transfer.
• HCl (Hydrogen Chloride): It is a covalent compound. In covalent compounds, atoms share electrons. Hydrogen (H) and chlorine (Cl) share a pair of electrons to achieve a more stable electron configuration.
• NaCl (Sodium Chloride): It is an ionic compound. Sodium (Na) donates an electron to chlorine (Cl), forming \(Na^{+}\) and \(Cl^{-}\) ions. The bonding is due to electron transfer.

Answer:

HCl