Exercises: Ionic or molecular in everyday life
Classify these everyday substances as ionic compounds or molecular compounds, and note the criterion you used (presence of a metal and a nonmetal, or only nonmetals):…
Classify these everyday substances as ionic compounds or molecular compounds, and note the criterion you used (presence of a metal and a nonmetal, or only nonmetals): table salt (NaCl), water (H₂O), sugar (C₁₂H₂₂O₁₁), baking soda (NaHCO₃), carbon dioxide (CO₂), and quicklime (CaO).
Two white substances are analyzed in the laboratory. Substance A melts at $160\,{}^{\circ}C$ and conducts electric current neither as a solid nor when molten. Substance…
Two white substances are analyzed in the laboratory. Substance A melts at $160\,{}^{\circ}C$ and conducts electric current neither as a solid nor when molten. Substance B does not melt even over the burner flame, but when dissolved in water it does conduct current. Decide which one is ionic and which one is molecular, and justify your decision with the properties of each type of compound.
In the kitchen, sugar melts easily when heated (that is how the caramel for flan is made), but table salt never melts on the stove. Both are white solids that dissolve…
In the kitchen, sugar melts easily when heated (that is how the caramel for flan is made), but table salt never melts on the stove. Both are white solids that dissolve in water. Explain this difference in behavior based on the type of bond and the particles each substance forms.