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Anonymous users2024-02-08Go to the library to find a biochemistry book, just read the chapter on vitamins and coenzymes, which talks a lot about food and human health, such as eating carrots is good for eyes, and so on.
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Anonymous users2024-02-07H-6 should refer to the ** of plastic raw materials, referred to as No. 6 plastic.
Those few icons:
Snowflakes: Signs that can be frozen to keep them fresh and put in the refrigerator.
Three curved lines: signs that can be heated.
I can't see the icon in the middle clearly, can you zoom in a little more?!
A box with two circles in the middle: dishwasher ready.
Cup and fork: EU food safety mark. (The cutlery is German.) ) stands for food grade.
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Anonymous users2024-02-06Related Literature].
The Effect of Chemical Elements in Food on Human Health - China Standardization - Horticulture.
The Effect of Mineral Elements in Tea on Human Health - China Tea - Li Xuzheng.
Effect of Trace Elements in Deer Blood on Human Health - Guangdong Trace Element Science - Sun Lei, Jia Junmei, Effect of Trace Elements in Water on Human Health - Journal of Datong Medical College - Huang Yuyun, Wang Wenzheng, Lu Zhiyan, The role of elements in the natural environment on human health - Jiangsu Environmental Science and Technology - Zhang Wenyuan.
The Effect of Elements Present in the Natural Environment on Human Health - Guangdong Trace Element Science - Zhang Wenyuan.
Hazards of hormones in animal foods to human health - Meat hygiene - Sun Changhua Peng Shungui.
Research on the Relationship between Chemical Elements and Human Health in Sports Environment - Journal of Anhui Vocational College of Electronic Information - Zhao Chuang.
The effects of hormones contained in animal foods on human health - meat hygiene - Wang Peihu.
The Effect of Tea on Human Health - Journal of Tea Machinery - Zhou Zhenxin.
The Effect of Tea on Human Health - Chinese Tea - Chung SYang, Joshua Lambert, Jiang Heyuan, Mousumi Bose, Sang Shengmin, Weng Wei (trans.), Effects of Trace Elements on Human Health - Guangdong Trace Element Science - Jia Kuishou Zheng Xiuqin.
Effects of the main elements of the battery on human health - Environmental Herald - None.
Effects of fluorine on human health - Trace elements and health research - Zhang Xiaolei, He Kuan, Ma Jianhua, Effects of trace metal elements on human health - Scientific and technological information development and economy - Yang Huidi.
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Anonymous users2024-02-05The Effect of Chemical Elements in Food on Human Health - China Standardization - Horticulture.
The Effect of Mineral Elements in Tea on Human Health - China Tea - Li Xuzheng.
Effect of Trace Elements in Deer Blood on Human Health - Guangdong Trace Element Science - Sun Lei, Jia Junmei, Effect of Trace Elements in Water on Human Health - Journal of Datong Medical College - Huang Yuyun, Wang Wenzheng, Lu Zhiyan, The role of elements in the natural environment on human health - Jiangsu Environmental Science and Technology - Zhang Wenyuan.
The Effect of Elements Present in the Natural Environment on Human Health - Guangdong Trace Element Science - Zhang Wenyuan.
Hazards of hormones in animal foods to human health - Meat hygiene - Sun Changhua Peng Shungui.
Research on the Relationship between Chemical Elements and Human Health in Sports Environment - Journal of Anhui Vocational College of Electronic Information - Zhao Chuang.
The effects of hormones contained in animal foods on human health - meat hygiene - Wang Peihu.
The Effect of Tea on Human Health - Journal of Tea Machinery - Zhou Zhenxin.
The Effect of Tea on Human Health - Chinese Tea - Chung SYang, Joshua Lambert, Jiang Heyuan, Mousumi Bose, Sang Shengmin, Weng Wei (trans.), Effects of Trace Elements on Human Health - Guangdong Trace Element Science - Jia Kuishou Zheng Xiuqin.
Effects of the main elements of the battery on human health - Environmental Herald - None.
Effects of fluorine on human health - Trace elements and health research - Xiaolei Zhang, Kuan He, Jianhua Ma,
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Anonymous users2024-02-041) 4 or Chang Hall 4; 144
2) The chemical properties of nitrogen resistance and hidden gas are not active.
3)d；cao+h2
o==ca(oh)2
Chemical reactions. 4)4fe+3o2
6h2o==4fe(oh)3
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Anonymous users2024-02-031) By the chemical formula C3H5O2
Na, it can be seen that it is composed of four elements: carbon, hydrogen, oxygen, and sodium; The mass ratio of carbon to oxygen is: (12 3):(16 2)=9:8;
So the answer is: four; 9：8；
2) Small packaging pastry food is often inflatable packaging, nitrogen is a commonly used filling gas, because the chemical properties of nitrogen are stable and non-toxic;
Therefore, the answer is: the chemical properties of nitrogen seepage are stable and non-toxic;
3) The valency of iron in iron hydroxide is +3 valence, and the hydroxide is -1 valence, so the chemical formula of iron hydroxide is Fe(OH)3
So the answer is: Fe(OH)3
4) a. Excessive consumption of steamed bread from the slag ridge of the whitening agent is harmful to the human body and does not conform to the topic
b. Insoluble calcium is not easy to be absorbed by the human body, and adding vinegar will convert it into soluble calcium, so that it can be easily absorbed by the human body, which is in line with the topic
c. Dyed steamed bread is made by adding colorants to steamed bread The production date of dyed steamed bread can be changed at will, and eating too much will cause harm to the human body It does not meet the topic
D. The chopsticks that have been moldy and deteriorated, boiled in hydrogen peroxide and turned white, such chopsticks are poisonous, harmful to the human body after use, and do not meet the theme
Therefore, b
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Anonymous users2024-02-02(1) Sodium benzoate C7H502Na contains 4 elements, and its relative molecular mass is 12 7 + 1 5 + 16 2 + 23 = 144 Therefore, fill in: 4; 144．
2) The chemical properties of nitrogen are inactive, and it is often used as a food preservative
3) quicklime is a commonly used desiccant, it belongs to the oxide so fill: d
The chemical equation for the reaction between quicklime and H20 is: CaO+H2O=Ca(OH)2
There are two kinds of reactants, and the product is one, which belongs to the chemical reaction Therefore, fill in: cao+h2o=ca(oh)2; Chemical reactions.
4) The chemical equation for the reaction of iron with oxygen and water is: 4Fe + 3O2 + 6H20 = 4Fe (OH) 3
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Anonymous users2024-02-011) Sodium benzoate C7H5
There are 4 elements in NA, and their relative molecular mass is 12 7+1 5+16 2+23=144 Therefore, fill in: 4; 144．
2) The chemical properties of nitrogen are inactive, and it is often used as a preservative for food and beverages
3) quicklime is a commonly used desiccant, it belongs to oxide so fill: d quicklime and h2
The chemical equation for the 0 reaction is: cao+h2
o=ca（oh）2
There are two kinds of reactants, and the product is one, which belongs to the chemical reaction Therefore, fill in: cao+h2o=ca(oh)2;
Chemical Reaction 4) The chemical equation for the reaction of iron with oxygen and water is: 4Fe + 3O26H20 = 4Fe (OH) 3
Rapid test card.
For example, the acetamiprid colloidal gold rapid test card applies the principle of competitive suppression immunochromatography, and the acetamiprid in the sample binds to the specific monoclonal antibody labeled with colloidal gold during the flow process, which inhibits the binding of the antibody to the acetamiprid-BSA conjugate on the NC membrane detection line. If the content of acetamiprid in the sample is greater than or equal to, and there is no red band on the test line (t), the result is positive; Conversely, the test line (t) shows a red band, and the result is negative. >>>More
Legal Analysis: Establish a food safety management system. >>>More
First of all, food is easily contaminated, and the main sources of contamination are: (1) microbial contamination. There may be: unclean raw materials, fine particles such as dust in the air with a large number of bacteria, unclean hands of street vendors contaminating food, unclean utensils, etc.; (2) Chemical pollution. >>>More
Food refers to all kinds of finished products and raw materials for human consumption or drinking, as well as items that are both food and Chinese medicinal materials according to tradition, and are classified as follows: >>>More
Barcodes have nothing to do with food safety laws, you think too much.