Answer:
Chlorine
Explanation:
Chlorine has an atomic number of 17 and a configuration of 2, 8, 7. In the outermost shell, it has 7 seven electrons which means that it needs just one more electron to attain an octet configuration in that shell. Therefore it's can react quickly with any nearby nucleophile.
Answer:
Do you have a picture
or can you state the reaction
The answer of the the reaction between tetrabromoethane and zinc is the image below. Acetylene and two zinc bromide are formed
The balanced net ionic equation for the reaction of aqueous sodium sulfide with aqueous lead(II) nitrate is Pb2+(aq) + S2-(aq) ===> PbS(s).
The chemical equation known as the net ionic equation only displays the substances that are directly involved in the chemical process. It is described how to write a net ionic equation. We only need to take out the spectator ions in order to formulate the net ionic equation. We are left with the net ionic equation after removing the spectator ions! The net ionic equation can be obtained by repeating this procedure for any reaction.
Na2S(aq) + Pb(NO3)2(aq) ===> 2NaNO3(aq) + PbS(s) ... molecular equation
sodium sulfide....lead(II) nitrate .........sodium nitrate.....lead sulfide
2Na+(aq) + S2-(aq) + Pb2+(aq) + 2NO3-(aq) ==> 2Na+(aq) + 2NO3-(aq) + PbS(s) ... complete ionic equation
Pb2+(aq) + S2-(aq) ===> PbS(s) ... net ionic equation
To know more about net ionic equation refer to: brainly.com/question/22885959
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Answer:
The correct answer is option 4.
Explanation:
Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.
This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.
For exothermic reaction :ΔH = negative
- If the temperature is increased, so according to the Le-Chatlier's principle , the equilibrium will shift in the direction where decrease in temperature occurs.So, equilibrium will move in backward direction.
- If the temperature is decreased , so according to the Le-Chatlier's principle , the equilibrium will shift in the direction where increase in temperature occurs.So, equilibrium will move in forward direction.
For the given equation:
I)
,ΔH° = -90 kJ
On Increasing the temperature
This is an exothermic reaction, backward reaction will decrease the temperature. Hence, the equilibrium will shift in the left direction that is towards reactants.
II)
,ΔH° = -161 kJ
On Increasing the temperature
This is an exothermic reaction, backward reaction will decrease the temperature. Hence, the equilibrium will shift in the left direction that is towards reactants.