Chapter 7 Review Packet 11-14-02[1]

The following oxides is the most acidic a cao b co 2

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23. Of the following oxides, __________ is the most acidic. a. CaO b. CO 2 c. Al 2 O 3 d. Li 2 O e. Na 2 O 24. Na reacts with element X to form an ionic compound with the formula Na 3 X. Ca will react with X to form __________. 25. What is the coefficient of M when the following equation is completed and balanced if M is an alkali metal? M(s) + H 2 O(l)
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26. Of the following substances, _____ is always produced when an active metal reacts with water. 27. This element is more reactive than lithium and magnesium but less reactive than potassium. This element is __________. a. Na b. Rb c. Ca d. Be e. Fr 28. The elements __________ could be used to produce a red or crimson color in fireworks. 29. Oxides of the active metals combine with acid to form ____________. 30. Oxides of most nonmetals combine with water to form ____________. 31. Oxides of most nonmetals combine with base to form ____________. a. hydrogen gas b. an acid c. a base d. water e. water and a salt 32. Element M reacts with oxygen to form an oxide with the formula MO. When MO is dissolved in water, the resulting solution is basic. Element M could be ____. 33. The reaction of a metal with a nonmetal produces a(n)
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