Answer:
In a chemical reaction, reactants that are not used up when the reaction is finished are called excess reagents. The reagent that is completely used up or reacted is called the limiting reagent, because its quantity limits the amount of products formed.
Explanation:
(2) three fewer valence electrons is your answer.
Answer:
D. Homogeneous;Heterogeneous.
Explanation:
Homogeneous equilibrium refers to a reaction in which the reactants and products are in the same phase i.e whether gaseous or liquid. This means it's concentration reactants and products in a chemical reaction can vary over a wide range.
For example,
The Heterogeneous equilibrium refers to a reaction in which the reactants and products are in different phases i.e solid, gaseous, liquid or aqueous. Its position isn't dependent on the amounts of pure liquids or solids present in the reaction.
For example,
Answer:
differential equation fora in terms of t is
Explanation:
Given :
Rate at which the reaction takes place is proportional to the square root of the amount of substance A present.
the amount of substance A present (measured in grams) at any time t = a
orbitary constant = k
Solution
The rate of change of the reaction is
Thus , if amount present is low then will be high
Now
Volume = v(t) = 25-(12-11)t
Volume v(t) = 25 –t
= 12 (200 grams) - 11/(v(t))a
converting 200 gram to kg we get
= 12 (0.2) - 11/(v(t))a