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BigorU [14]
3 years ago
12

Which scientist established the law of octaves?

Chemistry
2 answers:
Neko [114]3 years ago
7 0
J.A.R. Newlands established this in 1885, this describes the <span>chemical elements are arranged according to increasing atomic weight.</span>
laiz [17]3 years ago
6 0
He was an english scientist named john newlands
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Select all that apply.
serious [3.7K]
A beta particle is an electron and it has a -1 charge and zero mass.

Beta decay by emitting an electron is called as β⁻ decay. When this happens, a neutron of the element converts into a proton by emitting an electron. Hence, the mass of daughter nucleus is same as parent atom but atomic number/number of protons is higher by 1 than atomic number of parent atom.

In a β⁻ decay, the symbol is used as ₋₁⁰β or ₋₁⁰e.
             -1 is for charge
<span>              0 is for the mass of the particle

</span>
4 0
3 years ago
Read 2 more answers
If the stack of bricks on the right has a mass of 240 kg, approximately what is the mass of the stack of bricks on the left?
solong [7]

Answer:

720

Explanation: study island

4 0
3 years ago
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Which substance has Hf defined as 0 kJ/mol? H2O (s) Ne (l) O2 (g) CO2 (g)
vlabodo [156]

Answer:

O₂ (g).

Explanation:

  • All elements that found in nature has heat of formation (Hf) equal 0 J/mol.
  • So, the substance that  has heat of formation (Hf) equal 0 J/mol is O₂ (g).
  • H₂O is formed from the reaction of hydrogen and oxygen and has Hf, Also, the solidification of H₂O (s) from H₂O (l) has (Hf).
  • Although, Ne (g) is found in nature and has no Hf, the liquification to form Ne (l) has heat of formation (Hf).
  • CO₂ (g) is formed from the reaction between carbon and oxygen and so has heat of formation (Hf).
8 0
3 years ago
Read 2 more answers
Can someone help me with problem 21.105? Many thanks!
Reika [66]
The correct answer is 1 to the 3rd power
3 0
3 years ago
What is the best textile fiber?
boyakko [2]

Answer:

Cotton is the world's most widely used natural fibre and still the undisputed "king" of the global textiles industry.

Explanation:

7 0
3 years ago
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