Chemistry

What sort of change happens to a head of lettuce when you cut it in half?

More Questions from Chemistry
From all salt elements, which group is most soluble?
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What unit of measurement is one-thousandth of a gram?
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What radioactive metallic element, found in all uranium ores, has an atomic number of 89?
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What is the oxidation number on the chromium in a dichromate ion "(Cr2O7)^2-"?
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What are the building blocks of matter called?
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What would you call the treatment of disease, usually cancer, by chemical agents?
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What is the final product of the Uranium 238 decay chain?
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What is another name for synthetic gas made from coal?
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