Answer:
You have to remember this memory aid, diagonals and all.
You have to keep a tight tally of the electrons you’ve used so far so you don’t go over the number of electrons in the element you’re working on.
You have to remember how many electrons fit into each subshell (s, p, d, f).
It takes a lot of time, especially when the element has more than 20 electrons.
Explanation:
First write out the balanced equation. 3Cu+2Ag(NO3)3=2Ag+3Cu(NO3)2
Then convert copper from grams to moles
15 g*1 mol cu/63.54 g= 15/63.54 mol cu
Then use the mole ratio to convert Moles Cu to Moles Ag
15/63.54 moles Cu* 2 moles Ag/3 moles Cu
The final awnser is (15*2)/(63.54*3) moles Ag =0.157 moles Ag. If the question wants the answer in grams, convert from moles Ag to grams Ag.
0.157 moles Ag*107.87 g Ag/ mol Ag=16.98 g Ag
A weak acid in equilibrium would mean that the solution contains the corresponding ions and the acid molecule that are in equilibrium with each other. A weak acid is an acid that does not dissociate completely into ions. Therefore, the solution would have the HA molecule as well with, H+ and A- ions.<span />
Answer:
Urea
Explanation:
Amino acids are the monomeric units of proteins. They are bi-functional because they possess both an amino group (-NH₂) and a carboxyl group(-COOH). First class protein are essential ingredients for healthy human diet e.g milk, cheese, fish etc. Such proteins are broken down in the body by enzymatic hydrolysis to their constituent amino acids from which they are degraded into energy which is needed for growth and from which other life function is being synthesized. The result of this effect leads to separation of amine groups which are converted into urea by the liver.
This process is achieved by the deamination of excess amino acids that leads to the formation of urea which are excreted via the kidneys.