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o-na [289]
2 years ago
9

What property do all of the group 18 elements have that makes them stand out from other elements?

Chemistry
1 answer:
vredina [299]2 years ago
4 0
The are noble gases. They are all odorless, colorless, and are used to make neon lights.
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Please help if you do the food chain has to have the gray wolf in it
Marat540 [252]

Answer:

grass->bug->mice->wolf

Explanation:

7 0
2 years ago
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Consider the reaction below. NH4+ + H2O mc013-1.jpg NH3 + H3O+ Which is an acid-conjugate base pair? NH4+ and NH3 NH4+ and H3O+
juin [17]
NH4+ and NH3 are an acid-conjugate base pair, since NH4+ is an acid, while NH3 is its conjugate base (since it is without the H+).
H2O and H3O+ can also be considered an acid-conjugate base pair, since H3O+ is an acid, while H2O would be its conjugate base. (But if only 1 answer is to be selected, it should be the NH4+ and NH3)
NH4+ and H3O+ are both acids, and both H2O and NH3 can be considered bases.
4 0
3 years ago
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Which of these characteristics best describes a basic solution?
mario62 [17]
I believe the correct answer would be that it feels slippery. Being slippery or soapy is one characteristic of a base. This due to the fact that it dissolves the oils and fatty acids from the skin.  Other characteristics would be that it turns litmus paper blue and has a bitter taste.
5 0
3 years ago
In an endothermic reaction the ____ have more energy than the ____?
Ksju [112]

Answer: products; reactants

Explanation: as the endothermic reactions are tye one which absorbs energy

3 0
3 years ago
Calculate the fraction of lattice sites that are schottky defects for cesium chloride at its melting temperature (645oc). assume
baherus [9]
Answer : 7.87 X 10^{-6}.

Explanation : To find the fraction of schottky defects in the given lattice of CsCl,

we use the formula, \frac{N_{s} }{N}} = exp ( \frac{-Q_{s}}{2KT} )

on solving with the given values ,Q_{s}= 1.86 eV and T as 645 + 273 K and rest are the constants.

\frac{N_{s} }{N}} = exp ( \frac{-1.86 eV}{2 X (8.62 X 10^{-5}) X (645 +273)} )

we get the answer as 7.87 X 10^{-6}.
6 0
3 years ago
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