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eimsori [14]
3 years ago
12

Who was the first chemist to organize elements by atomic number? Johann Wolfgang Döbereiner Antoine Lavoisier Henry Moseley John

Newlands
Physics
2 answers:
Sliva [168]3 years ago
5 0

Answer: Henry Moseley

Explanation: On Edgenuity!

victus00 [196]3 years ago
3 0

Answer:

Dimitri Mendeleev

Explanation:

Mendeleev published his first periodic table of the elements in 1869, being the first periodic table in the whole world.

❤️<u><em>Hope this helps</em></u><em>!!!</em>❤️

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nata0808 [166]

Answer:

A. 12,240.

Explanation:

1,530 times 8.0 = 12,240.

hope this helped :)

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2 years ago
The Hertzsprung-Russel diagram is used to show the relationship between which two characteristics of stars?
Dahasolnce [82]

Answer:

A

Explanation:

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5 0
3 years ago
What is the heat capacity of an object at 25.5∘C that absorbs 45 kJ of heat and is heated to 28.2∘C?
sergey [27]

Answer:

16.6 kJ/°C

Explanation:

given,

Amount of heat absorbed = 45 kJ

initial temperature, T₁ = 25.5°C

final temperature, T₂ = 28.2°C

change in temperature = T₂ - T₁

                                       = 28.2 - 25.5  = 2.7° C

Heat\ capacity = \dfrac{Heat\ absorbed}{\Delta T}

Heat\ capacity = \dfrac{45\ kJ}{2.7}

Heat\ capacity = 16.6\ kJ/^0C

Heat capacity of the object is equal to 16.6 kJ/°C

4 0
3 years ago
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Aleks [24]

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Explanation:

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