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lorasvet [3.4K]
3 years ago
9

Which scientist arranged the elements in order of increasing atomic number, rather than increasing atomic mass? Antoine Lavoisie

r Dmitri Mendeleev Henry Moseley John Newlands
Chemistry
2 answers:
Natalka [10]3 years ago
6 0
The answer is Henry Moseley
Luba_88 [7]3 years ago
4 0

The answer is: Henry Moseley.

Henry Gwyn Jeffreys Moseley (1887–1915) proposed that the number of positive nuclear charges (protons) in atom is equal to its atomic number in the periodic table.

Mendeleev did not know about isotopes and he arranged the elements in order of increasing relative atomic mass.

For example, positions of iodine and tellurium were reversed in Mendeleev's table, because of different isotopes, but Moseley solved anomalies like this one.

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RoseWind [281]

Answer:

[SO_3]=0.25M

Explanation:

Hello there!

In this case, since the integrated rate law for a second-order reaction is:

[SO_3]=\frac{[SO_3]_0}{1+kt[SO_3]_0}

Thus, we plug in the initial concentration, rate constant and elapsed time to obtain:

[SO_3]=\frac{1.44M}{1+14.1M^{-1}s^{-1}*0.240s*1.44M}\\\\

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2 years ago
CaCO3 (s) + 176 KJ à CaO (s) + CO (g)
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True or False? Some solids after mixing with other solids can be distinguished from each other
katen-ka-za [31]

Answer:

True

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4 0
2 years ago
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1) Given the balance equation below. Calculate how much Na3PO4 in grams you
juin [17]

Answer:

<u>136.67 g of Na3PO4 i</u>s required to create 100 gram of NaOH.

Explanation:

The balanced equation:

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Now,

1 mole of Na3PO4 produce = 3 mole of NaOH

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or

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1 g/mol of NaOH is produced from =

\frac{164}{120}

100 grams of NaOH is produced from =

\frac{164}{120}\times100 gram of Na3PO4

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8 0
2 years ago
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Vesnalui [34]

Answer: It's the circulatory system

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8 0
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