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Natalka [10]
3 years ago
9

Are Si valence electrons shared? Are C valence electrons shared?

Chemistry
1 answer:
MariettaO [177]3 years ago
5 0

Answer:

4

Explanation:

Si has atomic number 14 so the electronic configuration 2,8,4

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Thermal energy always moves from a greater energy level to a lesser energy level
Nookie1986 [14]

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\fbox{Law -Based \: on \: laws \: of \: thermodynamic}

Explanation:

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6 0
2 years ago
Consider four different samples: aqueous LiBr , molten LiBr , aqueous AgBr , and molten AgBr . Current run through each sample p
Charra [1.4K]

Answer:

a) Aqueous LiBr = Hydrogen Gas

b) Aqueous AgBr = solid Ag

c) Molten LiBr = solid Li

c) Molten AgBr = Solid Ag

Explanation:

a) Aqueous LiBr

This sample produces Hydrogen gas, because the H+ (conteined in the water) has a reduction potential higher than the Li+ from the salt. Therefore the hydrogen cation will reduce instead of the lithium one and form the gas.

b) Aqueous AgBr

This sample produces Solid Ag, because the Ag+ has a reduction potential higher than the H+ from the water. Therefore the silver cation will reduce instead of the hydrogen one and form the solid.

c) Molten LiBr

In a molten binary salt like LiBr there is only one cation present in the cathod. In this case the Li+, so it will reduce and form solid Li.  

c) Molten AgBr

The same as the item above: there is only one cation present in the cathod. In this case the Ag+, so it will reduce and form solid Ag.  

6 0
3 years ago
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