Biological properties of F ions, properties of F ions and HF?

Negative ions. It is known as an air vitamin. Since the mobile phone has a word limit, you can't talk too much, so it will definitely be suggested that there will be.

Yes, for example, hemoglobin. You can refer to the encyclopedia.

Reducibility is easy to get electrons, electrolysis is forced to give electrons can not explain anything, high school seems to have never mentioned the reducibility of F ions, but in essence, it can get electrons to have reducibility, is acid has oxidation, so HF has oxidation.

Absolutely.

HF electrolysis to F2

H in HF is oxidizing, oxidizing metals and producing H2.

Liver : -7

In the organs: muscles :

Blood mg dm-3 : Daily intake -

Bones : 2000 - 12 000 people (70kg) total in the body

18 have HCl, H2S, PH3, F2, S2-, Cl-, P3-, Ar, K+, Ca2+, H2O2, MGC, HS-

14 has N2, Si, C2H2, Co, 10 has H2O, HF, NH3, CH4 Na+, Mg2+, Al3+, F-, O2-, N3-, NH4+, NH2-

The main role is to do inference questions, and there may be a lot more, but I haven't seen much chemistry for a long time, so please understand, I have time to make up for you. Hehe, I made up for it, it should be about the same.

Assisted diffusion does exist as a mode of transport, but it is difficult to define what kind of substance is assisted diffusion, such as glucose (this is very important in high school), it enters the tissue cells to assist, but renal tubular reabsorption and intestinal absorption are both active transport, and sodium ions, sodium ions come out of the cell is active transport, and from the outside of the cell is usually assisted diffusion, so this is a difficult way to classify, so this mode of transport is no longer mentioned in the new textbook.

The concentration of Na+ outside the membrane is much higher than the concentration in the membrane, so its influx does not require energy, but enters through the carrier protein of the Na+ channel, which belongs to facilitated diffusion, or assisted diffusion.

The reaction rate is related to the H+ concentration, the reaction rate is fast when the H+ concentration is large, the reaction rate is slow when the H+ concentration is small, and the NaCl is added to the CH3COOH solution and cannot increase the concentration of H+, so the reaction rate between CH3COOH and rust will not actually increase (if the salt effect is considered, the reaction rate will increase slightly).

There is a concept involved here: the salt effect, adding a strong electrolyte salt (NaCl) to the weak electrolyte solution (CH3COOH solution), the ionization degree of the weak electrolyte will increase, Na+ and CH3COO- attract each other, weaken the effect of H+ and CH3COO-, and reduce CH3COOH, even if the ionization degree of CH3COOH increases, note: the salt effect is usually very weak (if you are just learning here, don't read it, high school here does not require mastery, I just think that the problem you said can be explained to you with this explanation)

Generally speaking, we say that the reaction rate of strong acids is faster because HCl and CH3COOH of the same amount of substance, HCl can completely ionize H+, while CH3COOH can only ionize a small amount of H+, so in general, the reaction rate of HCl is greater than that of CH3COOH

Wango, dear !!

This reaction speed is only related to the concentration of hydrogen ions. Acetic acid is a weak acid, which can only ionize a few hydrogen ions in water, and it has no effect if you add NaCl.

In other words, it is so slow to change a bottle of hydrochloric acid solution with the same hydrogen ion concentration (acidity) as this solution.

In addition, high school students are all basic and ideal. There are more than n other factors that actually affect the reaction.

In fact, most chemical reactions are carried out in solution, and for ionic reactions in solution, the essence is ionic interaction. We have learned about ionization equilibrium, hydrolysis equilibrium, and precipitation dissolution. Let me mention that weak acids do not necessarily mean that strong acids cannot be produced, and this is wrong for high schools.

In biology class, it is not the absorption of ions by plants, but the absorption of ions by plants, and for the ions that some plants need, plants will absorb them through active transport. Probably as you said speeding up, it will suppress unwanted ions.

The speed of the ionic reaction can be seen from the equilibrium constant, which is related to the concentration of the reactants of the positive reaction, especially the ion concentration. Acetic acid is a weak acid, and the higher the concentration of H+, the faster the reaction. Of course, there are other ways.

It can be heated, and the iron filings can be brushed with a brush, and the reaction will be fast when pounded into powder, but in any case, it cannot be like a strong acid. Friend.

K ions affect the osmotic pressure of intracellular fluid, and the human body must replenish a certain amount of K ions every day, because it will be excreted with sweat, urine and stool, and its characteristics are: eat more and discharge more, eat less and discharge less, and discharge without eating. If it is missing, it can cause heart palpitations and other diseases, and in severe cases, it may lead to death.