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den301095 [7]
3 years ago
13

Can someone help me please

Chemistry
1 answer:
lesantik [10]3 years ago
4 0
It is an endothermic reaction because the products hAve more heat than the reactions so it was a gain of heat which makes the enthalpy Change positive !
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Consider the nuclear equation below. 239/94 Pu—-> X+ 4/2 He. What is X?
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Answer:

X = U (Uranium)

Explanation:

Pu-->235/92 U + 4/2 He

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Write the condensed ground-state electron configurations of these transition metal ions, and state which are paramagnetic:
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Answer:

a) Mo the electron configuration: 42Mo: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d4

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An atom becomes positively charged when it looses an electron.

Diamagnetism in atom occurs whenever two electrons in an orbital paired equalises with a total spin of 0.

Paramagnetism in atom occurs whenever at least one orbital of an atom has a net spin of electron. That is a paramagnetic electron is just an unpaired electron in the atom.

Here is a twist even if an atom have ten diamagnetic electrons, the presence of at least one paramagnetic electron, makes it to be considered as a paramagnetic atom.

Simply put paramagnetic elements are one that have unpaired electrons, whereas diamagnetic elements do have paired electron.

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Which type of change is represented?
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