Answer: (A) 
(B) 
Explanation:
(A) As we know that HCl is a strong acid and when it is added to an aqueous solution then it leads to increase in the concentration of hydrogen ions. And, when an acid or base is added to a solution then any resistance by the solution in changing the pH of the solution is known as a buffer.
This means that addition of buffer into the given solution will not cause much change in the concentration of 
in large amount.
As both the buffer components are salt then they will remain dissociated as follows.
Hence, net ionic equation will be as follows.
(B) When we add small amount of sodium hydroxide into the solution then there will occur an increase in concentration of hydroxide ions into the solution. But then due to the presence of buffer there will occur not much change in concentration and the acid will get converted into salt.
The net ionic equation is as follows.
Heya!!!
Answer to your question:
A catalyst is ______
B. Not used up in a reaction.
Catalyst do not change the amount of reactants or products or itself get used but it just change the rate of reaction.
Hope it helps *_*
Answer:
Ethane
Explanation:
CH3-CH3 is an alkane by the name of ethane. In organic chemistry there is a systematic way of naming compounds according to the prefix (eth) and the suffix (ane.)
The prefixes vary according to the number of carbon atoms:
1 C = meth
2 C = eth
3 C = prop
4 C = but
<span>Chemical change.........................................................................</span>
Answer:
High activation energy is the reason behind unsuccessful reaction.
Explanation:
There are two types of reaction: (1) thermodynamically controlled reaction and (2) kinetically controlled reaction.
Thermodynamically controlled reaction are associated with change in enthalpy during reaction. More negative the enthalpy change, more favored will be the reaction.
Kinetically controlled reaction are associated with activation energy of a reaction. The lower the activation energy value, the more rapid will be the reaction.
Here, reaction between 
and 
is thermodynamically favored due to negative enthalpy change but the high activation energy does not allow the reaction to take place by simple mixing.
