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stellarik [79]
3 years ago
6

What’s the difference between chemical and nuclear energy?

Chemistry
1 answer:
Usimov [2.4K]3 years ago
3 0

Answer:

nuclear is explosive and has potential energy while the other has kinetic energy

Explanation:

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soluble starch, maltose and various dextrins.

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Which of the following is not a physical change?
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b or d

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Ionic character of lih
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I believe LiH becomes HF 
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How many fluorine atoms bond with calcium to form calcium fluoride? one two three four five
Elena-2011 [213]
Calcium fluoride.
Ca is metal, F is non-metal, so they form ionic bond.
Ca as metal can form only positive ion. Ca in the second group, so the charge of Ca ion is 2+.   Ca²⁺
F is in the 17th group, so it has 7 electrons on the last level. It is non-metal, non-metal, so it has negative charge -(8-7)=-1. "8" because on the last level cannot be more than 8 electrons. F-ion is F¹⁻.

Ca²⁺  F¹⁻
Number of positive charges should be equal to number of negative charges,
Formula of calcium fluoride
CaF2.
2 atoms Fluorine bond with Calcium.
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3 years ago
ASPA!!!! How could a scientist determine what elements are present in a distant star by looking at its absorption spectrum?
8_murik_8 [283]

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