3 years ago

What's the ABBREVIATED electron configuration for cobalt?

Chemistry

1 answer:

kow [346]3 years ago

6 0

Answer:

Cobalt/Electron configuration

Explanation:

[Ar] 3d7 4s2

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Answer:

1. Ag2CO3

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3. Cu(OH)2

4. AL

Explanation:

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3 years ago

For the reaction: h2(g) + cl2(g) → 2hcl(g), how many moles hcl will be produced from 10.0 g of h2? the reaction occurs in the pr

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3 years ago

Read 2 more answers

What is the specific heat capacity of a 70 g sample of an unknown metal that releases 6700J of heat when it cools from 90 to 25

swat32

Q = mCpΔT —> Solve for Cp —> Cp = q/mΔT

q = -6700 J (negative because it released heat
m = 70 g
ΔT = Final temp - initial temp = 25 - 90 = -65°C

Cp = -6700 J / (70 g)(-65°C) = 1.47 J/g°C

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3 years ago

Which of the following is a helpful addition to your observations?

Pavlova-9 [17]

The answer to that question would be C

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3 years ago

(45 pts) In which reaction is carbon reduced?

Sidana [21]

Answer:

Reductio is gain of electrons, while oxdation is loss. The oxidtion states of carbon in the reaction will show either of oxidation or reduction occurrence.

$C_{2} H_{2}(g) +H_{2} (g)$ → $C_{2} H_{4}(g)$

Explanation:

Electrons displacement is explained for each reaction below:

+2 to +4 = loss of 2 more lectrons-------oxidation
+4 throughout reaction----no exchange of electrons
-4 to +4 = loss of 4 electrons-----oxidation
0 to -2 = gain of 2 electrons-----reduction

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3 years ago