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Sati [7]
3 years ago
8

Use this interactive illustration to examine the movement of the continents over the past 600 million years.Which phrase describ

es the movement of the continents?
*only coming together
*only moving apart
*coming together and moving apart
*not moving; always in one solid land mass
Chemistry
2 answers:
mixas84 [53]3 years ago
7 0
The phrase that describes the movement of the continents based on the interactive illustration that helps us examine the movement of the continents over the past 600 million years is this: <span>coming together and moving apart. The answer is the third option. Hope this helps.</span>
Vlad1618 [11]3 years ago
4 0

the answer is C) moving together and moving apart

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What happens to the number of valence electrons as you move up a group
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Ionization Energy: DOWN a Group: Ionization energy DECREASES as you go DOWN a Group because the farther the valence electrons are from the nucleus (pulling power of the protons) the less energy it costs another atom to steal them
5 0
3 years ago
To what temperature in kelvin will a 2.3 L balloon have to be heated to expand to a volume of 400 L Assume the initial temperatu
olchik [2.2K]

Answer:

T₂ = 51826.1 K

Explanation:

Given data:

Initial Volume = 2.3 L

Final volume = 400 L

Initial temperature = 25 °C (25+ 273 = 298 K)

Final temperature = ?

Solution:

V₁/T₁ = V₂/T₂

T₂ = V₂ T₁/V₁

T₂ =  400 L . 298 K / 2.3 L

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T₂ = 51826.1 K

7 0
3 years ago
Why are most household items made up of oxygen?
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5 0
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In what way does the arrangement of the periodic table tell you information about the elements
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6 0
2 years ago
Choose the option below that is a characteristic of ketones.
trasher [3.6K]

Answer:

Option d.

Explanation:

Ketones contain a carbonyl groups as a functional group, which is a carbon bonded to oxygen with a double bond. In a ketone, the carbon is always bonded to two carbon atoms:

R-C(=O)-R'  

The carbon in the carbonyl group has a hybridization sp2 (3 hybrid orbitals with an unhybridized p orbital), where two of the orbitals form sigma (σ) bonds with the other two carbons (R-C-R') and the other hybrid orbital form a sigma bond with the oxygen (C-O). The unhybridized p orbital on the carbon atom is used to form a pi (π) bond with the oxygen, thus forming the double bond (C=O).  

The bond of a carbonyl group is polar, because of the difference of the electronegativity between the carbon atom and the oxygen atom.  

Hence, from all of the above <u>we can discard the option a</u>, (the carbonyl groups exhibits sp2 hybridization), <u>the option b</u> (carbon-oxygen bond is a bond polar) and <u>the option c</u> (the group must always be in the middle of a carbon chain, the groups that are always in the end, are a aldehyde groups).

Therefore, the correct option is d, the functional group of this type of compound must always be in the middle of a carbon chain.

I hope it helps you!

5 0
3 years ago
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