correct the following sentence,
1)The pH value of orange juice is lower than that of stomach juice.
2) Building materials which contain calcium carbonate can react with acids to give sulphur dioxide.
3) Acidic lakes are often very muddy because a plenty of micro - organisms live there.
科學,,,acid & alkali
2007-05-05 1:41 am
回答 (3)
2007-05-05 1:50 am
✔ 最佳答案
1)The pH value of orange juice is higher than that of stomach juice.
2)
Building materials which contain calcium carbonate can react with acids to give carbon dioxide. (not for sulphuric acid)
3)
Acidic lakes are often very muddy because marine live die in high acidity.
參考: me*
2007-05-05 1:51 am
1)The pH value of orange juice is HIGHER than that of stomach juice.
OR 1)The pH value of stomach juice is lower than that of orange juice .
2) Building materials which contain calcium carbonate can react with acids to give CARBON dioxide.
3) Acidic lakes are often very CLEAR because a plenty of micro - organisms live there.
OR 1)The pH value of stomach juice is lower than that of orange juice .
2) Building materials which contain calcium carbonate can react with acids to give CARBON dioxide.
3) Acidic lakes are often very CLEAR because a plenty of micro - organisms live there.
2007-05-05 1:48 am
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