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Gnoma [55]
3 years ago
9

Number of electrons present in 10th shell of an atom

Chemistry
1 answer:
stellarik [79]3 years ago
3 0

Answer:

there will be 8 electrons

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If you connect a solid piece of copper with a solid piece of zink using only a wire electrons will flow from the zinc to the cop
vladimir2022 [97]

False

Explanation:

This is false because there is no solution and salt bridge to facilitate the movement of electrons from the two metals.

This connection is not an electrochemical cell because other components are absent. To fully form the electochemical cell which allows a potential difference to be set up;

  • Presence of electrodes
  • Presence of a solution
  • Wire
  • Salt bridge

Just wires and the electrodes are given in this set up and it will not work.

Learn more:

Electrolyte brainly.com/question/4609389

#learnwithBrainly

3 0
3 years ago
An 80.0g sample of an unknown metal is at an initial temperature of 55.5oC. Afer 540 J of energy is absorbed by the metal, the t
Lunna [17]

Answer:

Specific heat of metal = 0.26 j/g.°C

Explanation:

Given data:

Mass of sample = 80.0 g

Initial temperature = 55.5 °C

Final temperature = 81.75 °C

Amount of heat absorbed = 540 j

Specific heat of metal = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT =  81.75 °C - 55.5 °C

ΔT =  26.25 °C

540 j = 80 g × c × 26.25 °C

540 j = 2100 g.°C× c

540 j / 2100 g.°C = c

c = 0.26 j/g.°C

7 0
3 years ago
At 25.00 °C a gas has a volume of 6.00 L. What will the volume be at 150.0 °C? *
MrMuchimi
This solved in according to Charles law
V1/T1=V2/T2
So the answer is 8.51 L
7 0
4 years ago
After a covalent bond has stabilized an atom, the atom will have
Dafna1 [17]

<em>Answer:</em>

  • The atom have a full valence electron shell.

<em>Explanation:</em>

  • My question is that why covalent bonds take place?

Every atoms tends to from bond with another atoms in order to get nearest electronic configuration of nobel gases. They become stable when their valence shell become complete. So when covelant bond forms between atoms, share electrons to each other and stabilize themselves.

5 0
3 years ago
Read 2 more answers
What formula can represent hydrogen ions in an aqueous solution?
Montano1993 [528]

Answer : The formula that represent hydrogen ions in an aqueous solution is, H^+

Explanation :

As we know that the formula of water is, H_2O.

In an aqueous solution, it dissociates to give hydrogen ion and hydroxide ion.

The dissociation reaction is:

H_2O(aq)\rightarrow H^+(aq)+OH^-(aq)

The formula of hydrogen ion is, H^+

The formula of hydroxide ion is, OH^-

Hence, the formula that represent hydrogen ions in an aqueous solution is, H^+

5 0
3 years ago
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