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jeka57 [31]
2 years ago
6

A. How does the atomic radius change going down and across the periodic table?

Chemistry
1 answer:
Leya [2.2K]2 years ago
6 0

Answer: A when going down the periodic table your atomic radius will get bigger same if you got to the side. B Moving left to right within a period or upward within a group, the first ionization energy generally increases

Explanation:

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Atoms of two different elements must have different
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Atomic number The atomic number of each element is different than other Elements.
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3 years ago
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When an electron in an atom moves from a higher, less stable level, down to a lower, more stable level, a photon is
Wittaler [7]

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Emitted

Explanation:

8 0
3 years ago
What is the pH of a 0.00530 M solution of HCI?
MrMuchimi

Answer:

2.28

Explanation:

HCl(l) ===> H+ + cl-

HCl is a very strong acid. Almost all of it will decompose to the right. That means the concentration of H+ is 0.00530

pH = - log [H+]

pH = - log[0.00530]

pH = - - 2.2757

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3 years ago
Is SiO2 London Dispersion, Dipole-Dipole, or Hydrogen Bonding?
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Answer:

It is Dispersion

Explanation:

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2 years ago
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What is the concentration (M) of CH3OH in a solution prepared by dissolving 34.4 g of CH3OH in sufficient water to give exactly
bonufazy [111]

Answer:

4.67M

Explanation:

The concentration of methanol (CH3OH) can be calculated using the following:

Molarity (M) = number of moles(n)/volume(v)

However, mole is not given. It can be obtained by using:

Mole = mass / molar mass

Where; mass = 34.4g

Molar mass (MM) of CH3OH is:

= 12 + 1(3) + 16 + 1

= 12 + 3 + 17

= 32g/mol

mole = 34.4/32

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The volume needs to be converted to L by dividing by 1000

230mL = 230/1000

= 0.230L

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Molarity = 1.075/0.230

Molarity = 4.6739

Molarity = 4.67M

The concentration of CH3OH in solution is 4.67M

5 0
2 years ago
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