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Harlamova29_29 [7]
3 years ago
12

Define ionization energy and explain why the second ionization energy of any element is higher than its first ionization energy.

Chemistry
2 answers:
pochemuha3 years ago
7 0
The amount of energy required to remove the most loosely bound electron in1 mole of an atom in its neutral gaseous state. Atomic radius is smaller, great nuclear charge (pulling power of protons on less electrons)
Shalnov [3]3 years ago
5 0

Answer:

Ionization energy is the one you need to remove an electron from an atom.

Explanation:

when you want to form an ion, you need to take an electron from the base form (neutral form) of an atom, in that way the negative and the positive charges are not going to be equal, so is going to be an ion. In the case of the second ionization energy, you need more energy to take a second electron from this atom because is closer to the core of the atom, and it has a stronger attraction by the positive core of the ion.

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How many moles of zinc are in 4.70 kg of zinc?
faust18 [17]
First we convert kg to g
1kg =1000g
4.70=x(gram)
4.70×1000÷1=4700g
now:
number of moles=mass÷molarmass
number of moles=4700÷65.4
number of moles=71.86moles.
6 0
3 years ago
Read 2 more answers
How many moles are in 12 grams of NH3?​
aleksklad [387]

Answer:

molecular weight of NH3 or grams This compound is also known as Ammonia. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles NH3, or 17.03052 grams.

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KIM [24]

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The answer is agriculture.

Explanation:

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3 years ago
What is abbreviated structural formula of the 2-metil-5-isopropiloctan?​
Alja [10]

Answer:

            CH3

            |

CH3-    C H  -CH2-CH2-      CH   - CH2-CH2-CH3

                                              |

                                              CH

                                           /     \

                                         CH3  CH3

Explanation:

Octan

C-C-C-C-C-C-C-C

Metyl

CH3 -

Isopropyl

     CH3

    /

- CH

   \

     CH3

2-metil-5-isopropiloctan

           CH3

            |

CH3-    C H  -CH2-CH2-      CH   - CH2-CH2-CH3

                                              |

                                              CH

                                           /     \

                                         CH3  CH3

                           

8 0
3 years ago
Using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective sub
Lisa [10]
Sodium chloride because it contains the most reactive metal(sodium) and most reactive non-metal(chlorine).
6 0
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