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A timer or countdown timer is a type of clock t...

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A timer or countdown timer is a type of clock that starts from a specified time duration and stops u...

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Acetone (2-propanone or dimethyl ketone) is an ...

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Methyl orange is a pH indicator frequently used...

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Activated carbon, also called activated charcoa...

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Calcium hydroxide (traditionally called slaked ...

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The reaction is so exothermic that ignition is ...

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EDTA It is used in medicine to prevent blood sa...

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