From the location of the elements calcium, Ca, and chlorine, Cl, in the Periodic Table, which is a characteristic of the compound CaCl2?  Select TWO correct answers.A It has a low melting point.B It has a high boiling point.C It is formed by an ionic bond.D It is a gas at room temperature.E It does not conduct electricity when dissolved in water.

To determine the characteristics of the compound CaCl2, we need to consider the location of calcium (Ca) and chlorine (Cl) in the Periodic Table.

Step 1: Locate calcium (Ca) and chlorine (Cl) in the Periodic Table. Calcium (Ca) is located in Group 2, Period 4, and chlorine (Cl) is located in Group 17, Period 3.

Step 2: Analyze the characteristics of the compound CaCl2 based on the location of the elements. Since calcium (Ca) is in Group 2, it tends to lose two electrons to achieve a stable electron configuration. Chlorine (Cl), on the other hand, is in Group 17 and tends to gain one electron to achieve a stable electron configuration.

Step 3: Determine the correct characteristics of the compound CaCl2. Based on the above analysis, we can conclude that: C) It is formed by an ionic bond - Calcium (Ca) loses two electrons to become Ca2+ and chlorine (Cl) gains one electron to become Cl-. The resulting compound CaCl2 is formed by the attraction between the oppositely charged ions, indicating an ionic bond. E) It does not conduct electricity when dissolved in water - Ionic compounds, such as CaCl2, do not conduct electricity when dissolved in water because the ions are held in fixed positions and cannot move freely to carry an electric current.

Therefore, the correct characteristics of the compound CaCl2 are that it is formed by an ionic bond and it does not conduct electricity when dissolved in water.