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Gwar [14]
3 years ago
15

Picture of the question is below, if answered correctly, I will reward with brainliest.

Chemistry
1 answer:
BARSIC [14]3 years ago
6 0

Answer:

1. Number 3

2. Number 1

3. Number 5

4. Number 4

5. Number 2

I think, this is the order.

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According to the Lewis dot structure shown here how may valence electrons does chlorine have
coldgirl [10]

The answer is to your question is C.7 Hope that is right



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3 years ago
A student was titrating the calcium and water solution and notice the formation of bubbles in the flask. which description would
labwork [276]
Hi!

When titrating Calcium and Water solution, if there is some CaCO3 in the solution, the following reactions may occur in acid solution:

CaCO₃ + H⁺ → Ca⁺² + HCO₃⁻

HCO₃⁻ + H⁺ ↔ H₂CO₃ → CO₂ (g) + H₂O

The bubbles are from CO₂ that is being developed from an acidic solution of CaCO₃

4 0
3 years ago
What is the pH of 2.0 M nitrous acid at equilibrium (Ka= 4.6×10-4)?
Serga [27]
Check out this link to help you. :)
Someone else already answered this question.
brainly.com/question/1489637
5 0
2 years ago
Read 2 more answers
Give the name of one or more polysaccharides that matches each of the following descriptions:
adell [148]

Answer:

A Cellulose not digested by humans.

b. the storage form of carbohydrates in plants is starch

C amylose contains 1-4 glycosidic bond

D Glycogen and starch are highly branched polysaccharides.

Explanation:

8 0
2 years ago
Which atomic models does Rutherford’s experimental evidence support? Explain why these models (Dalton, Bohr, Thomson models) are
ipn [44]

Answer:

Rutherford was the first scientist who proposed the nuclear model of the atom. According to his atomic model, most of the space of an atom is empty, while the nucleus containing protons and neutrons lie at the center of the atom while electrons revolve around nucleus in definite orbits.

If we talk about studies of some other scientists like Dalton, Neil Bohr and JJ Thomson, they all are compatible with Rutherford's results to a large extent.

For example: Dalton's atomic model assumed that atoms of any substance are similar in size and atoms react to form compounds. Rutherford's concept indicated that atoms contain electrons and they are in a specific number which can be shared to form compounds.

If we talk about Bohr's model, it states that electrons revolve around nucleus in specific shells, this again is compatible with Rutherford's results which gave the concept of shells.

If we talk about Thomson's Plum pudding model, that describe atom as negative particles floating within a soup of diffuse positive charge. This is also compatible with the results of Rutherford that state that negative electrons surround positive nucleus.

Rutherford's model was best atomic model but still it took help from many previous studies and therefore was compatible with the results of old models.


Hope it help!

5 0
3 years ago
Read 2 more answers
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