What type of bonding is present in sodium chloride crystal and baking powder?

Sodium chloride (NaCl) crystals exhibit ionic bonding, where sodium ions (Na⁺) and chloride ions (Cl⁻) are held together by strong electrostatic forces due to their opposite charges. In contrast, baking powder, which typically contains a combination of sodium bicarbonate (NaHCO₃) and acidic components, exhibits covalent bonding within its molecular compounds, while the interactions between the molecules can involve van der Waals forces. Thus, sodium chloride primarily features ionic bonding, while baking powder involves covalent bonding with some weaker intermolecular interactions.