Общая характеристика химических элементов и их соединений

NaS2O3 SOCl2 HNO2 S2Cl2 K2Cr2O7 NaHSOt

В порции поваренной соли NaCl суммарное число атомов всех элементов равно 30,1⋅1023. Вычисли химическое количество поваренной соли. Вычисляй с точностью до сотых. В ответе запиши число. Например: 2,55.

к какому классу пренадлежат вещества NO,A1L2V3,Cu2O,PbO,CO,Mn2O7,CO2,HMnO4,ZnCO3,BaO,Mn(OH)2,Fe(OH)3,HNo3,KCe

Our History in 2006 Jasper Electronics Co., Ltd. was set up as an independent marketing division; in 2008 Fuming was acquired by Jasper Electronics Co., Ltd. Almost every process of production has been fully-automated, eg silk printing, die-cutting, drying, position-hole punching, and pin-cramping. in 2014 Jasper Electronics moved to new site, Shajing town, Shenzhen. With 1250 square meters, over 10-year engineering team and state-of-art facilities, we are in better position to serving our customers’ need now. Our Factory Jasper Electronics Co., Ltd., is specialized in human interface products development and manufacturing, primarily membrane switch, flexible circuit, rubber keypad and keypad assemblies. We also offer outsourcing services that are vertically integrated with components capabilities to optimize our OEM customer's operations and time to market. Our specific experience and competence lies in the manufacture of screen printing, die set and assembly technology. On the basis of these technologies, Jasper has concentrated efforts on four business fields: membrane switch, flexible circuit, rubber keypad and keypad assembly. At Jasper, we believe quality is key to business growth. We have a stringent QC program in place, which keeps our product defect ratio low at less than 5 percent. We are committed to providing the one-time perfect quality and value-added services. Great vision, continuous innovation, business operation and team-work spirit, has constituted our organization culture and motivated Jasper people to create the true value for the clienteles. Our Product JASPER Products includes the following: 1, membrane switches 2, membrane panel 3, rubber products 4, Flexible Circuits We supply membrane switches all over the globe to a wide range of companies worldwide, ranging from large multinational organizations to small individual companies. Product Application Home Appliances Consumer/Industrial Electronics Mobile Phone/UMPC Toy Security Control System Automotive Industrial Automation Medical and Scientific Instrumentation Network Products Our Certificate We always feel that all success of our company is directly related to the quality of the products we offer. They meet the highest quality requirements as stipulated in ISO9001-2008, SGS guidelines and our stringent quality control system. 3 semi-automatic printers; 2 stamping presses; 1 hydraulic’s; 1 heat embossing machines; 1 CCD hole punching machine, 2 mechanic’s; 1 ball-screw type laser-cutting machine 1 film-laminating machine 2 laser-cutting machines; 2 ovens; 1 UV-curing machine; 1 Film-exposure machine; 1 frame-drying machine 2 keypad functionability testers; 1 fully-automatic pin-cramping machines etc. Production Market We have customers in the domestic market and foreign markets. Jason Hu sales manager can speak fluent English for good communication. Our main sales market: Nationalwide; Japan; East Asia; South America; the Middle East;Eastern Europe; Major customers: home appliances; medical; automotive; machinery and equipment; consumer electronics; instruments and meter,and so on. Cooperation customers: Gree; Foxconn; ZTE; Reliance; Tata Indicom; GE; TCL; Sanmina-sci Etc. Our service Jasper Electronics provides design engineering and manufacturing services that are vertically integrated with components capabilities to optimize its OEM customer's operations and time to market. Jasper establishes long-term customer partnership by delivering the human interface solution available, primarily membrane switch, EL lamp, circuit board, rubber keypad, plastics moulding, touch panel and electronics assemblies. Our aim is to achieve customer satisfaction through excellence in design, supply chain management, manufacturing and repair solutions. Through our culture, our drive and the expertise of each individual employee, we are uniquely positioned to provide best-in-class services to a global customer base.China touch panel website:http://www.bestmembraneswitchs.com/

1. азот (N) , кислород (O) , железо (Fe) , медь (Cu) , кремний (1)
2. бор( B ), алюминий (AI), никель (Ni),криптон (2),калий (3)
Какие обозначения должны стоять на месте цифр 1,2 и 3? (Знания химии для решения задачи не требуется)
(A) Kr, K, Si; (Б) Kr, Si, K; (Г) Si, K, Kr; (Д) K, Kr, Si.

N * О; б) число электронных слоёв: N * С; в) число электронов на внешнем уровне: С * N; г) радиус атома: С * N; д) окислительные свойства: О * P; е) металлические свойства: С * P .