Clenbuterol of food additives The skimming answer to the article Clenbuterol of food additives... Ur

1.What is this article about? Try concise language to summarize the description of this article.

3 points) 2Arbitrarily enumerate one of the explanatory methods used in the text and point out its role in the text. (2 marks) Answer:

1."Clenbuterol". Example:

This article first explains what "Clenbuterol" is, and then explains the discovery, introduction, use and prohibition of "Clenbuterol". (Similar meanings are sufficient).

2.Example 1: Column data.

Such as: "At present, there are more than 60 million pig farms in the country, of which only about 30 are slaughtered more than 500 heads a year, most of them are small pig farms, ** raising, difficult to supervise, and low cost of violation. "It is a concrete and accurate indication that production and operation are highly fragmented.

Example 2: Interpretation. Such as:

What is 'Clenbuterol'? The scientific name is adrenergic receptor agonist compounds, including more than a dozen substances such as clenbuterol hydrochloride, ractopamine, and albuterol. "A specific and accurate explanation of the substances contained in "Clenbuterol".

It is sufficient to explain a method and function of explanation).

- Fear of harming the slabs.

This data is ** on the map, and the final result is subject to the latest data on the map.

"Clenbuterol". Clenbuterol; Scientific name: Clenbuterol hydrochloride; It is an asthma reducer. The drug is neither a veterinary drug nor a feed additive, but an adrenal neurostimulant. Dichloroolamine hydrochloride; asthma; Ammonia; Ampital; Ammonia dichloroasma; Aminodichloroolamine.

Clenbuterol structure simplified.

MF: C12-H18-Cl2-N2-O Physical and chemical properties White or off-white crystalline powder, odorless, bitter taste, melting point 161, soluble in water, ethanol, slightly soluble in acetone, insoluble in ether.

(1) C12H18Cl2N2O is a compound containing carbon and belongs to organic matter;

2) The relative molecular mass of C12H18Cl2N2O is: 12 12+1 18+, where the mass ratio of carbon, oxygen and hydrogen is: (12 12): 16: (1 18) = 72: 8: 9

Therefore, the answer is: (1) organic; （2）277，72：8：9．

(1) C12H18Cl2N2O is a compound containing carbon and belongs to organic matter;

2) The relative molecular mass of C12 H18 Cl2 N2 O is: 12 12 + 1 18+ where the mass ratio of carbon, oxygen and hydrogen is: (12 12).

9 Therefore the answer is: (1) organic; （2）277，72：8：9．