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OleMash [197]
3 years ago
8

Has the research described in this article been peer reviewed?

Chemistry
1 answer:
Igoryamba3 years ago
5 0

Answer:

answer it correctly!!

dapat kase iniintidi ang pag basa , dahil kong hindi mo ito aayosin pag basa wapa kang ma totonan

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zepelin [54]

Models of atoms and compounds help in understanding of concepts of reactions in chemistry.

<h3>What are models?</h3>

Models are objects used to provide a visual representation of certain things or structures.

Models are widely employed in chemistry because of their usefulness in strengthening understanding of concepts.

The importance of models in chemistry include:

  • they help students to be able to visualize the structures of atoms and compounds in a macroscopic scale
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Therefore, models help in understanding of concepts of reactions in chemistry.

Learn more about chemistry models at: brainly.com/question/4769748

4 0
3 years ago
4 g of ag2so4 will dissolve in 1l of water. calculate the solubility product (ksp) for silver (i) sulfate.
Bas_tet [7]
Reaction of dissociation: Ag₂SO₄ → 2Ag⁺ + SO₄²⁻.
m(Ag₂SO₄) = 4 g.
V(Ag₂SO₄) = 1 l.
n(Ag₂SO₄) = m(Ag₂SO₄) ÷ M(Ag₂SO₄).
n(Ag₂SO₄) = 4 g ÷ 311,8 g/mol.
n(Ag₂SO₄) = 0,0128 mol.
n(Ag⁺) = 2 · 0,0128 mol = 0,0256 mol.
n(Ag₂SO₄) = n(SO₄²⁻) = 0,0128 mol.
c(Ag⁺) = n ÷ V = 0,0256 mol ÷ 1 l = 0,0256 mol/l.
Ksp = c(Ag⁺)² · c(SO₄²⁻).
Ksp = (0,0256 mol/l)² · 0,0128 mol/l.
Ksp = 8,3·10⁻⁶.

7 0
3 years ago
4. What happens to the bond angle when you add or remove an electron domain?
Vaselesa [24]

Answer:

Bond angle is affected by the presence or addition of lone pair of electrons at the central atom. Due to this, the bonds are displaced slightly inside resulting in a decrease of bond angle, and when you remove an electron domain the bond angle increases.

Explanation:

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How are the elements organized on the periodic table
Inessa [10]

Answer: By atomic number

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4 years ago
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pentagon [3]

An occluded front forms when a warm air mass is caught between two cooler air masses.

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3 years ago
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