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sweet-ann [11.9K]
3 years ago
9

What element is helpful for tooth decay

Chemistry
1 answer:
emmainna [20.7K]3 years ago
3 0
Fluoride and calcium are both helpful for stopping tooth decay
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Predict the aldol product when the following ketone undergoes self-condensation in the presence of NaOH. Do not show the dehydra
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β-hydroxyaldehyde (an aldol) namely 3-Hydroxy butanal.

Explanation:

When acetaldehyde is treated with dil.NaOH it undergoes self condensation as it contains alpha-hydrogen atom in its compound forming β-hydroxyaldehyde (an aldol) namely 3-Hydroxy butanal. This compound upon further heating will eliminate a molecule of water forming aldol condensation product namely Crotonaldehyde Or But-2-en-al. see the diagram attached.

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A nuclear fission reaction has mass difference between the products and the reactants of 0.0284 amu. Calculate the
notsponge [240]

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