3 years ago

Tooth enamel is chemically known as

Chemistry

1 answer:

Vladimir [108]3 years ago

7 0

Answer:

Hey!

Your answer is Calcium Phosphate!

Explanation:

It is the substance/mineral that is mostly found in our teeth and bones!

HOPE THIS HELPS!!

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What is the average isotopic mass of an element that has the following abundances in nature? Isotopic mass: X20 X22 X23 Abundanc

Paladinen [302]

Answer: 20.2

Explanation:

Mass of isotope 1 = 20

% abundance of isotope 1 = 90.5% = $\frac{90.5}{100}=0.905$

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% abundance of isotope 2 = 8.0% = $\frac{8}{100}=0.08$

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Formula used for average atomic mass of an element :

$\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})$

$A=\sum[(20\times 0.905+(22\times 0.08)+(23\times 0.015]$

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Answer:

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A hydroxyl group is a functional group that attaches to some molecules containing an oxygen and hydrogen atom, bonded together. Also spelled hydroxy, this functional group provides important functions to both alcohols and carboxylic acids.

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