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Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.
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If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?
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Which metal exist in liquid state and can be cut with knife ?
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