Q:Recently, when I breathe feeling a bit of acid teeth, this feeling particularly uncomfortable, ask you what is the reason ah? What should I do? Thank you

What you say is likely to be dentin hypersensitivity because of the lack of enamel, the dentin layer, and the sensation of mechanical irritation, chemical stimulation, and temperature stimulation.

Q:I am a candidate for this year's Harbin City, Jiqiu the standard answer, tomorrow I will test !!!

is to maintain the cell within the acid-base balance, regulating osmotic pressure, maintaining the shape and function of cells. Such as calcium in the blood, and potassium ions.

Q:Are fruits and vegetables inactive?

Inorganic salts are inorganic compounds in the salt, formerly known as minerals, the body has found more than 20 species, including constant elements of iron, zinc, selenium, molybdenum, chromium, cobalt, iodine 8. Apple, pipa, durian, citrus, Watermelon, kumquat, peanuts, I know so much. Oh, there are: lotus lotus which contain inorganic salts

Q:What is the element?

Element is pure matter composed of atoms of the same kind of element. An element is called a free state of an element in the presence of an element.

Q:How to see the whole bread of the alkali alkali small

Look. Cut the dough to see, such as the distribution of uniform distribution of sesame grain size of the hole, indicating that the base is appropriate; such as the emergence of small holes, was slender strip, dough color yellow, that the alkali put more; Uniform macro, dough color dark, that the alkali put less.

Q:Like the role of B, Fe, Mg, Ca, Mn, Cu, Cl, P, S, N ...., the more specific the better (college entrance examination range)

Ca2 + is the animal bone and teeth (containing CaCO3) composition, and blood coagulation and muscle contraction has a regulatory role, if the content is too low, the animal will appear muscle twitch. K + is a variety of enzyme activator, for the plant starch and protein synthesis and animal nerve impulse conduction and muscle contraction also plays an important role. Fe is a component of hemoglobin and cytochrome, and iron-containing enzymes are indispensable when chlorophyll is formed in plants. Another example is Na + for animal heart beat, nerve excitement is indispensable.

Q:Octopus why the lack of boron-containing inorganic salts can cause rape to flow only without fruit

Boron has a great influence on the reproductive process of plants, which can accelerate pollen differentiation and pollen tube elongation. In the absence of boron, pollen tube germination is affected, poor fertilization, which leads to the formation of seeds affected, the reduction of growth hormone produced by the reduction of growth hormone will affect the formation of fruit.

Q:Acidic oxide is a kind of oxide which can form acid or react with water to form salt and water. Generally non-metallic elements of oxides and certain transition metal elements of high-priced oxide. Such as sulfur trioxide SO3, phosphorus pentoxide P2O5, manganese dioxide Mn2O7, chromium trioxide CrO3 and so on. Most of the non-metallic oxides are acidic oxides. In our familiar non-metallic oxides, carbon monoxide and nitric oxide are not acidic oxides, and are usually classified as non-acid oxides.

Acid oxide corresponding to the hydrate is acid, such as CO2 corresponding to the hydrate is H2CO3, N2O5 corresponding hydrate is HNO3.

Q:in the ocean

Salts are the result of the association of cations and anions. Cations are usually metals like Calcium, Sodium, Potassium anions are ususally sulfates, phosphates, carbonates...... calcium carbonate and calcium phosphate are useful in making bone. Potassium Chloride is important in heart beat regulation Sodium Chloride is important in maintaining blood pressure. Carbonate is important in blood chemistry and the transfer of energy within a cell. all these salts are found in abundance in the ocean. If you follow evolution, those salts in the ocean have given rise to our own blood chemistry and organic health.

Q:Are there any differences between minerals and inorganic salts?

For example, iodine in kelp, calcium lactate in sour milk, etc. These minerals are not inorganic salts.