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Sidana [21]
3 years ago
6

NaOH, KOH, and Ca(OH)2 are examples of (4 points)

Chemistry
1 answer:
dezoksy [38]3 years ago
8 0
Bases...
Acid are those contain H+ ions...
Bases/alkali are those with OH- ions
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Which element has a greater electronegativity?<br> fluorine (9) or radium (88)
emmainna [20.7K]

Answer:

Fluorine

General Formulas and Concepts:

<u>Chemistry</u>

  • Reading a Periodic Table
  • Periodic Trends
  • Electronegativity - the tendency for an element to attract an electron to itself
  • Z-effective and Coulomb's Law, Forces of Attraction

Explanation:

The Periodic Trend for Electronegativity is up and to the right of the Periodic Table.

Fluorine is Element 9 and has 9 protons. Radium is Element 88 and has 88 protons. Therefore, Radium has a bigger Zeff than Flourine.

However, since Radium is in Period 7 while Fluorine is in Period 2, Radium has more core e⁻ than Fluorine does. This will create a much larger shielding effect, causing Radium's outermost e⁻ to have less FOA between them. Fluorine, since it has less core e⁻, the FOA between the nucleus and outershell e⁻ will be much stronger.

Therefore, Fluorine would attract an electron more than Radium, thus bringing us to the conclusion that Fluorine has a higher electronegativity.

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2 years ago
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Which of the following statements describe the physical properties of a penny?
kodGreya [7K]
I believe the answer is A.
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3 years ago
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First to answer first gets 10 pts and brainlesit!
Kryger [21]
A for the first and b for the second!!:))
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What does NOT affect the characteristic properties of an element?
bazaltina [42]

Answer:

characteristic properties of an element are the defining properties of that element and it does not change with quantity of the element used.

Explanation:

the amount or the quantity of the element used does not affect the characteristic property of the element. it does not matter is the if the amount or the quantity of the element used in the reaction is large  or the small the characteristic properties like boiling point, melting point, density, thermal conductivity, etc remain the same or remain constant.

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Free pts lollll here ya go
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Answer:

thanks bro

Explanation:

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