1. Which one of the formulas for ionic compounds below is incorrect? A. SRCI2 В. АICI3 C. Al3P2 D. Cs2S 2. Which of the following is a nonpolar covalent molecule? A. NH3 В. НаО С. НСІ D. CCI4 3. Which of the following has the highest boiling point? С. СН-СH2CH3 D. CCI4 A. NaCl В. HBr 4. Which of the following statements about water is not correct? A. Water molecules contain covalent bonds. B. Water has weak forces between molecules. C. Water has a low melting point. D. Water molecules contain H+ and OH- ions. 5. Which of the following phrases would be used in a description for the bonding in BOTH metals and ionic salts? A. Strong electrostatic attraction B. lons C. Giant lattice D. Delocalized electrons

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