Answer:
A volumetric pipette is used to measure 25.0cm3 of 2.0mol/dm3 aqueous sodium hydroxide into aconical flask.
A burette is filled with dilute sulfuric acid.
Write a balanced symbol equation for the reaction between these chemicals when we neutralise.
Explanation:
The reactants of the given reaction are:
sodium hydroxide and dilute sulfuric acid.
The balanced chemical equation of the reaction is:
Acid and base raect with each other and form salt and water.
This reaction is called a neutralization reaction.
Answer:
Kc = 1.54e - 31 / 2.61e - 24
Explanation:
1 ) 
; Kc = 1.54e - 31
2) 
; Kc = 2.16e - 24
upon reversing ( 2 ) equation
Kc = 1/2.16e - 24
now adding 1 and reversed equation (2)
we get ,
Kc = 1.54e-31 × 1/2.61e - 24
equilibrium constant of equation (3) is -
Kc = 1.54e - 31 / 2.61e - 24
The main goal of mitosis is to line up duplicated chromosomes and to split them equally, resulting in two cells with the same number of chromosomes
Explanation:
Things that float=paper,plastic bottle,rubber, polythene bag, balloon
Things that sinks =needle,stone,spoon,pen,soap
The Lewis structures in which there are no formal charges is the most stable. Hence, structure (b) is the more stable form of FNO2.
<h3>Lewis structure</h3>
The question is incomplete but I will try to answer you as much as I can. Now the equation is missing hence we can't numerically caculate the enthalpy chnage of the reaction from bond energies. However, we can do this using the formula; Σbond energy of reactants - bond energy of products.
Concerning the Lewis structures of FNO2, the most stable structure is structure (b) as shown in the image attached where the atoms have no formal charges.
Learn more about Lewis structure:brainly.com/question/4144781
