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SCORPION-xisa [38]
3 years ago
7

In which reaction is the first ionization energy greatest?1.na + energy → na+ + e−2.k + energy → k+ + e−3.mg + energy → mg+ + e−

4.al + energy → al+ + e−?
Chemistry
2 answers:
SpyIntel [72]3 years ago
5 0
The answer would be the 3. Mg + energy--> mg+ + e- 
Ionization Energy is the amount of energy vital to eliminate the most loosely bond electron from an atom in the gas stage. Since Magnesium has a higher first energy which is 738 kj/mol, is the energy needed to remove the outermost, or highest energy.
natta225 [31]3 years ago
3 0

Answer: Option (d) is the correct answer.

Explanation:

The energy required to remove the most loosely bound electron from a neutral gaseous atom is known as ionization energy.

As the atomic size of an atom increases then there will be less force of attraction between the nucleus and valence electrons of the atom. Hence, with lesser amount of energy the valence electrons can be removed.

As a result, ionization energy will decrease.

Now, potassium is larger in size than sodium. Hence, ionization energy of potassium is less than sodium.

And, Na, Mg and Al are all period 3 elements. It is known that across a period there is an increase in ionization energy of the elements due to decrease in their atomic size.

Hence, aluminium being the smallest will have the greatest ionization energy.

Thus, we can conclude that the reaction Al + energy \rightarrow Al^{+} + e^{-} will have the greatest first ionization energy.

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Is combining water and powdered drink mix a chemical reaction?
VikaD [51]

Answer:

No, it's a physical reaction.

Explanation:

A chemical change produces new chemical compounds, but combining water and powder is just mixing the powder with the water. It's not a new compound.

I don't know how to really explain, sorry :)

3 0
2 years ago
Ethanol can react with hydrochloric acid to form chloroethane and water. When sulfuric acid is added, the
kaheart [24]

Answer: 1.Sulfuric acid is a catalyst

2. Vanadium(v) oxide is a catalyst

6 0
3 years ago
The compound 1-butene is modeled here. What would need to happen for molecules of this compound to transform into polybutene? A.
kompoz [17]
In order to form polymers, we need to chain molecules together. This involves making bonds between them.

Shifting H’s around doesn’t accomplish anything.

Forming more double bonds will have the opposite result, as it would make the molecules more stable and less likely to react with each other.

Adding oxygen to the molecule no longer makes it polybutene. That would likely result in the formation of some sort of ether, as hey would react to form a C-O-C Bond.

The only answer left is A. In order to form polyalkenes, we have to break a double bond so that it’s available to form more covalent bonds.

Hope this helps
4 0
3 years ago
What is a rechargeable battery?
aleksklad [387]

Answer:

a group of electrochemical cells that can be recharged

6 0
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Why are intensive properties useful for identifying a substance?
Lesechka [4]

Answer:

d

They do not depend on the amount of substance you have.

3 0
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