When was the first published textbook containing a table identifying the first 33 elements

1 answer:

5 0

1789 -- raité élémentaire de chimie is a textbook written by Antoine Lavoisier published in 1789 and translated into English by Robert Kerr in 1790 under the title Elements of Chemistry

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A particle of light has a wavelength of 7.0×10−7 m. What color of light is represented and what is the amount of energy released

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Answer:

red and 4.6×10^-40

Explanation:

The energy of a foton is calculated by thefollowing formula: Efoton=h×(c/lapda). Fill in 7.0×10^-7 gives us Efoton=6.626×10^-34 (planck constant) × 7.0×10^-7=4.6×10^-40.

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The volume of a gas is always the same as the volume of __________.

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The answer would be A: its container.

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1 wavelength, 2 crest, 3 trough, 4 wave height <3

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Hoochie [10]

The compound : C₄₀H₄₄N₄O

<h3>Further explanation</h3>

The empirical formula is the smallest comparison of atoms of compound =mole ratio of the components

The principle of determining empirical formula

• Determine the mass ratio of the constituent elements of the compound.

• Determine the mole ratio by dividing the percentage by the atomic mass

The mol ratio of composition : C : H : N : O

$\tt \dfrac{80.66}{12}\div \dfrac{7.39}{1}\div \dfrac{9.39}{14}\div \dfrac{2.68}{16}\\\\6.722\div 7.39\div 0.671\div 0.1675\rightarrow divide~by~smallest(0.1675)\\\\40\div 44\div 4\div 1$

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Haha i’m trying to do the same one i’ll make sure if i find out how too to get back to you!

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