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answerhappygod
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PLEASE HELP ASAP

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PLEASE HELP ASAP
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Select the true statement about buffer systems: Select one: O a. Buffers are made of a strong acid and it weak conjugate base to prevent shifts in pH when a base is added. O b. Buffers are made of a weak acid and a strong base to prevent shifts in pH when an acid is added. C. Buffers are made of a weak acid and its strong conjugate base to prevent shifts in pH when a base is added. d. Buffers are made of a strong acid and its strong conjugate base to prevent shifts in pH when an acid or base is added. e. Buffers are made of a weak acid and its weak conjugate base to prevent shifts in pH when an acid or base is added.
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