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AfilCa [17]
3 years ago
15

What element is added to toothpaste and city water systems to help tooth decay?

Chemistry
1 answer:
Ad libitum [116K]3 years ago
3 0
Answer is Fluorine.
Hope it helps and pls mark as the best answer. :-)
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One of the hydroxybenzoic acids is known by the common name salicylic acid. Its methyl ester, methyl salicylate, occurs in oil o
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Answer:

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Explanation:

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3 years ago
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How many moles of sodium atoms do you have if you have 5.60 ~
Papessa [141]

Answer:

0.93 mol

Explanation:

Given data:

Number of moles of Na atom = ?

Number of atoms = 5.60× 10²³

Solution:

Avogadro number:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. The number 6.022 × 10²³ is called Avogadro number.

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3 years ago
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Explanation:

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