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This is because sodium hydroxide absorbs carbon IV oxide from the air which would otherwise put off the candle before all the oxygen has been used up.
jamesndungu answered the question on May 14, 2018 at 01:50
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Date posted: May 2, 2018. Answers (1)
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Sodium carbonate is manufactured by the solvay process.
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Date posted: May 2, 2018. Answers (1)
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a.) Name two raw materials.
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Date posted: May 2, 2018. Answers (1)
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Copper II sulphate was made to undergo electrolysis using graphite electrodes.
a.) What is electrolysis.
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c.) Write the equation for the reaction that took place at the anode.
Date posted: May 2, 2018. Answers (1)