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Vsevolod [243]
3 years ago
5

The modern periodic table arrangement is a result of all of the following except many scientists who contributed individual know

ledge. total rejection of the early versions for modern ideas. much scientific reexamination and argumentation of ideas. periodic repetition of the chemical and physical properties of the elements.
Chemistry
1 answer:
KonstantinChe [14]3 years ago
4 0
The correct option is this: TOTAL REJECTION OF THE EARLY VERSIONS FOR MODERN IDEAS.
The modern periodic table arrangement was as a result of many contributions from many scientists, who contributed individual knowledge. The periodic table has gone through a lot of reexamination and it is always regularly updated as new scientific facts emerge. The elements in the periodic table are arranged based on the periodic occurrence of the chemical and physical properties of the elements.
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Help cococococo cococococo doing this for the points or whatever it is cococo
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Answer:

what is cocococococo?

Explanation:

isnt it like a plant for choclate?

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Cells that produce antibodies that help destroy the pathogens are called what
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Antibodies are produced by a type of white blood cell called a plasma cell.
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3 years ago
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1. How does the Key change for a weak acid?
Tema [17]

The weak acid will have fewer ions than the strong acid of similar concentration.

The chemical reactions for a weak acid and a strong acid is given below:

  • Strong acid: HA → H⁺ + A⁻
  • Weak acid: HA ⇆ H⁺ + A⁻

<h3>What are strong and weak acids?</h3>

Strong acids are acids which dissociate completely in solutions. Examples of strong acids are hydrochloric acid and sulfuric acid.

Weak acids are acids which dissociate only partially in solutions. Examples of weak acids are carbonic acid and acetic acid.

Weak acids of a similar concentration to a strong acid have fewer hydrogen ions.

The equation of the dissociation of strong acids and weak acids are given below:

  • Strong acid: HA → H⁺ + A⁻
  • Weak acid: HA ⇆ H⁺ + A⁻

In conclusion, weak acids produce few ions in solution while strong acids fully dissociate into ions in solution.

Learn more about strong and weak acids at: brainly.com/question/15192126

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7 0
2 years ago
In general what two classes of materials dissolve in water
Ivenika [448]
<span>Polar covalent & Ionic are the two materials

</span>
3 0
4 years ago
A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concentrated su
ivanzaharov [21]

Answer:

1.84 g/cm³

Explanation:

A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. The mass of water is:

m(water) = 593.63 g - 78.23 g = 515.4 g

The density of water is 1.00 g/cm³. The volume of water (and the flask) is:

515.4 g × (1 cm³/1.00 g) = 515 cm³

When the same flask is filled with concentrated sulfuric acid, H₂SO₄, its mass is 1026.57 g. The mass of H₂SO₄ is:

m(H₂SO₄) = 1026.57 g - 78.23 g = 948.34 g

948.34 g of sulfuric acid occupy a volume of 515 cm³. The density of sulfuric acid is:

ρ = 948.34 g / 515 cm³ = 1.84 g/cm³

3 0
3 years ago
Read 2 more answers
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