(full marks 100, exam time 90 minutes), you can use the relative atomic mass. H-1 C-12N-14 O-16 S-32 Zinc 65
A multiple-choice questions (paper 2 hours 44 minutes, each sub-question only one meets the requirements of the topic)
1.2004 December 26, 2004, the tsunami disaster in the Indian Ocean tsunami shocked the world, the following are chemical changes (
A. trees and break B. houses collapsed, the track rusted CD roads were destroyed<BR /"2. the following material is a pure substance (potassium permanganate reaction residue) after
A. air to separate rare gases B. frozen distilled water
C. pigs D. smelting of iron ore heating ... ... /> 3. the use of the following substances, the use of property, the other three fundamental differences ()
A. Hydrogen B. Dry ice is used to fill balloons, artificial rainfall
C. Magnesium powder fireworks and flares? Copper (southbound)
4. The following statement is () A. B. Desalination of metals against corrosion
C. Oily wastewater D. Freshwater BR /> 5, lack of scientific basis. The level of quality, quality, conditions:
Air Pollution Index (API) for 0-50 51-100 101-200 201-300> 300
Good air quality conditions correspond to the Air Pollution Index (API). Mildly polluted, moderately polluted, heavily polluted
Air quality class I, II, III, IV V
June 3, 2010, Yiyang City District Air Pollution Index (API) 82? 93, based on the above information to determine the Yiyang City District, the air a day? Quality and air quality conditions ()
A: the good results of my level of talent, Ⅱ C. Ⅲ light pollution D. V heavy pollution
6. February 16, 2005, the "Kyoto Protocol" came into force, the core significance of its: to reduce greenhouse gas emissions and control global warming. The main greenhouse gas ()
Carbon A. Carbon dioxide B. Oxygen C. Nitrogen D. Hydrogen
7. of the main mineral composition and content of the mineral water is printed on the label as follows (in mg / L): CA-20, K?Zinc 0.06 F?0.02. Here, calcium, potassium, zinc, F ()
AB Elemental atom. Element D. Ion
8. burning firewood, usually firewood overhead burns more prosperous because of ()
A. the growth of the cooling rate B. heat
C. wood ignition point of the rapid collection to reduce the area of contact with the air improves the e-wood
9. and then correct the following chemical equation ()
A. Iron shavings are dissolved in Dilute sulfuric acid: +3 H2SO4 == 2FE of Fe2(SO4)3 +3 H2↑
B. Salt water soluble potassium nitrate solution of NaCl + KNO3. == sodium nitrate + potassium chloride
C. Charcoal combustion in insufficient oxygen: 2C +
O2 2C0 D. Hydrogen peroxide decomposition:
10. easy to set off firecrackers individual and environmental hazards, Yiyang City in the city has issued a closure order, high school students should take the lead in compliance, but also very good publicity and explanation. Signs prohibiting the discharge of firecrackers ()
11. a solute dissolved in water, the resulting solution will be compared with water, and must not change ()
A. boiling point B. conductivity C. color D. water molecule composition
12. the following table shows the pH range in different:
color red - orange, green, blue-violet
pH value The color of the pH indicator in the range 1-3. 4? 56? 78? 101? 14
Indicator in a small amount of dilute hydrochloric acid and sodium hydroxide solution is added drop by drop to the droplet of the mixture, there is a change in color () / A & gt;
A. from green to blue colored red B. blue-orange C. green D. from violet to red
13. right part of the fertilizer production plant fertilizer bags, fertilizer Belongs to ()
A. Nitrogen B. Phosphorus fertilizer C. Potash description. D. compound fertilizer
14. scientists predict that hydrogen 2l century will be the main source of energy, but in addition to the production of hydrogen in energy consumption, we first have to solve the problem, but also must be solved
A. materials B. pollution limitations on the environment BR /> C storage and transportation of hydrogen release inconvenience D. heat burning less
15. yiyang loose flower skin eggs Famous throughout the country and exported to Southeast Asian countries. Salt is produced from a combination of soda ash, lime, fly ash, containing potassium carbonate, water, and rice bran, rice husk and other accessories. The main ingredient quicklime, slaked lime, reacts with water, the deduction is most likely to occur, the first compound decomposition reaction ()
Decomposition reaction in a chemical reaction between A in a reactor in a combination of reactions in which BCD is replaced
16. four medications laboratory cabinets store the following medications:
Drug Cabinets B, C, and?
Drugs zinc, copper, sodium salts, sulfuric acid, sodium hydroxide, hydrochloric acid
Iron, magnesium, , sodium bicarbonate, potassium hydroxide, sulfuric acid diluted
Laboratory after the two bottles of anhydrous calcium chloride, it should be ()
A. Cabinet B. B shell C, ? Cabinet D. Small cabinet... /> 17. in the following cases, cast iron pipe buried corrosion rate is the fastest ()
AB
CD in dry, dense soil moist, loose soil moist and dry soil dense soil loose / a>; 18. once a year, the World Environment Day, June 5, the theme of the World Environment Day: everyone participates in the creation of a green home. The following are not in line with this theme ()
C.
A. Forests B. Returning farmland to forests and the widespread use of disposable styrofoam tableware ban on the use of phosphate-free detergents D. briquette stoves BR />; 19. premise, do not use a pH indicator, a solution of calcium chloride in order to remove a small amount of hydrochloric acid, to obtain a pure solution of calcium chloride, and the most suitable choice of Reagent ()
Silver nitrate solution B. Clarified lime
C. Powdered lime D. Calcium carbonate powder
20. lime, limestone, burnt lime production plant produces L008 million tons of lime, 90% calcium carbonate limestone mass (relative atomic mass: CA-40 C-12O-16) ()
A. 1620 tons B. 800 tons C. 1900 tons D. 2000 tons
21. the correct solubility curve to determine that the following statement is incorrect (
A: substance T1 ° C solubility is less than the solubility of substance B
B. T2 ° C, A, B saturated solution of substances A and B are equal mass
C. T3 ° C, A, B saturated solution of substances Cooled to t2 in units of ° C, precipitation of crystals
D. Mixed with a small amount of substance B substance, cooling hot saturated solution of the purified species
May 22.2005, Yiyang City, Ziyang District, Tiger Mountain unearthed a number of Warring States bronze, in fact, as early as the Shang Dynasty ability to manufacture fine bronze Warring States period, has been able to iron smelting and steelmaking. Human development and utilization of metal monometallic time series activities of the quality and intensity of the intrinsic connection. It is inferred that when the reporter asked about the development and use of human metal () in the order of
A. Copper, iron, zinc and aluminum B. Zinc, iron, aluminum
C. Copper, iron, zinc AL D Aluminum and zinc, iron, copper
Quantity Ⅱ
, fill in the blanks (20 points for the question ****)
23. Write down the following chemical symbols:
( (1) three nitrogen molecules (2) two magnesium ions
24. the maximum amount of the element formed on the compound of this chemical formula for the maximum amount of the metal element in the human body and in the Earth's crust.
25. benzylpenicillin chemical formula C16H19N3O4S-3H2O, whose main constituent elements are contained in a safer than the first common anti-inflammatory drug.
26. chemistry is closely related to human health. Some important nutrients such as sugar, starch, fats, proteins, vitamins and other important life activities. In vivo, high school students, not partiality, picky eating, daily balanced intake of nutrients in sufficient quantities for growth and development of the critical period.
(1) Students usually do not eat only meat and vegetables, protein deficiency caused by weakness, fatigue, and even coma and other symptoms of his lack of nutrients;
(2) Students on the graduation intake exams. If you were a doctor, you would suggest that he should be on a normal diet, the food(s) we eat.
27. cleaned up the lab of experimental drugs that were found missing colorless solution bottle labels, only know that they are reagents Na2CO3 solution and BaCl2 solution test has identified (write the chemical formula or name to identify) two chemical methods: (1), (2).
28. Heshan District, Yuejia Town, last year, avian influenza, to prevent the spread of the epidemic, in addition to the rapid isolation of infected poultry cages, disinfection of tools. Disinfectant potassium permanganate (KMnO4), which belongs to (fill in the "oxide" acid "and" base "or" salt "), manganese price price.
Month 29, basic principles of school, home office water purifier? Water purification equipment can be shown on the right side of the gravel, sand, or similar adsorption.
30. Yiyang City, in accordance with the "West-East" plan, laid in the near future residents of the natural gas pipeline will use natural gas, natural gas is a colorless, odorless gas less dense than air gas leakage is prone to explosions, anti-static, fire prevention and transportation of natural gas has a strong irritating odor (mercaptan) gas mixture. Registration /> (1) the main component is methane, natural gas, it belongs to the object of inorganic materials (in the "organic" or "filled"); /> (2) mixed with sulfuric acid, transport gas
(3) indoor gas leakage. Should immediately close the valve, open the windows and ventilation, do not do to fill (any) BR /> 31., B, C and D is a common containing potassium. Reactions between them are as follows:
(1) 2A + B = C +2 H2O ② Ba2SO4↓ + AC + D ==
③ Copper Sulfate = == Barium Sulfate ↓ + D + Cu (OH ) 2 ↓
Based on the information above to deduce the chemical formula of the substance B: A, B, the chemical equation: Write the reaction ②
32 metal mass equal, A, B, and placed in a sufficient amount of dilute hydrochloric acid, (product A, B of the two components of the same price), correctly analyzed in the relationship between the mass (m) and the hydrogen produced by the reaction in the mass fraction of solute in the time (t), as shown in the figure, can be obtained from this information in any written material (2):
(1)
(2) 3 short questions, (this question) *** 10 points)
33 evening May 29, 2005, Huai'an City, Jiangsu Province, Jiangsu Province, Beijing-Shanghai high-speed section of the traffic accident two cars collided, resulting in a large area? Tank leakage of liquid chlorine gas (Cl2), causing vehicles on the side of the road housing countryside yellow-green gas at the scene of the accident can be seen in the sky, smelling pungent odor, the villagers casualties were heavy. Firefighters must wear air respirators, wearing gas suits, using high-pressure water spray and alkaline liquid chlorine in the sky, in order to eliminate chlorine pollution, ground subsidence and damage.
(1) Summary of the above information
(2) Rescue, Calcium (OH) 2 solution of physical chlorine (chlorine): the spray absorbed the chlorine
2Cl2 on the known formula (2) Ca (OH reacts with 2 == X) +2 +2 H2O in Ca (ClO) chemical formula, please tell 10 /> (3) Villagers near the site took measures to protect Yourself BR /> 34 At the end of the test, you graduate from junior high school and leave your alma mater on the occasion of the last impression that you want to leave the school to take care of the plants and trees and not to throw things. Suppose, when you put my things
A. Waste clean up the following items in this B. Rotten apples, C. Cans, bottles, D. Moldy cookies, E. Rusty nails.
(1) should be placed in the recyclable waste (fill in the serial number);
(2) the use of hydrochloric acid rusty nails (the main component of iron oxides) to reuse, please write the chemical equation to prevent rust.
(3) Please write such words of advice to other senior students in the school environment.
35. Materials science has become the forefront and is the most popular subject in the world. The materials are generally divided into metal materials, inorganic non-metallic materials, synthetic materials, composite materials, March 28, 2005, in the National Technological Invention Award is vacant for six years, was named academician of the Chinese People's Academy of Engineering, the microstructure of the research group of the Central South University led by the President because they invented a high-performance carbon / carbon brake aerospace materials technology. Microstructure Eagle County, he and his innovative team 20 years later, more than 000 days and nights of hard work, finally succeeded, after countless failures, not only to break the monopoly and blockade, Europe and the United States, and better performance.
(1) Carbon carbon aviation brake materials "two words" carbon "two different carbon materials, the substance of aviation brake materials.
(2) The widespread use of composite materials have their advantages and disadvantages, you write any disadvantages of priority. The advantages and disadvantages of.
(3) What do you think from the advanced scientific inquiry into microstructures?
Four laboratory questions (16 points for this question ***)
36 years of chemical research, you have mastered the gas laws of the laboratory, answer the questions, your equipment. (Reminder: the following selected equipment, filling equipment code)
(1) Write the name of the specified apparatus: ①;
(2) in the laboratory system to collect carbon dioxide reaction, carbon dioxide gas cylinders, in the test set, both devices should be used to connect to the type of collection of the complete
(3) laboratory O2, KMn04 generation, the equipment selection, equipment and Electronic equipment to collect O2 experiments in the order of operation stops. Collection device; BR / (4) CA gas, natural gas.
37. learning varsity query copper patina copper (OH)2CO3 in some black powdery solid black solid experimental exploration, analysis and verification of thermal decomposition of gases in test tubes for the production of carbon dioxide and water vapor, please fill in the blanks:
(1): what is the black solid conjectures and hypotheses
(2): the black community: B copper oxide carbon dioxide....
(3) Get Info: Reaction of charcoal and black copper oxide solid toner with dilute acid, dissolved with dilute acid, dissolved in dilute acid and copper oxide.
(4) experimental design: fill a sufficient amount of solution (drop in the chemical formula) the idea that the solid is dissolved in the full reaction in vitro black body, color of the solution.
(5) Phenomena and conclusions: If you suspect it is correct, and, if you have time, you guessed right b? Guess the phenomenon.
> (6) suitable equipment to verify that the two gases produced by the gas mixture produced by the equipment, and vice versa will have what effect gas equipment should be verified through the process
V BR /> 38. sultanas are a synthetic red dye. Recent studies have shown that the most common form of increased Sudan red is known to be mutagenic and carcinogenic metabolite strong title (title) countries conduct rigorous investigations and handling of food, C16H12NO, in Sudan chemical formula:
(1) Sudan relative molecular mass;
(2) Sudan elemental mass;
(3) Sudan red in the nitrogen mass fraction. mass fraction.
39. zinc and copper alloy invested in dilute H 2 SO 4, only 74.2 grams, 0.2 grams, and will the reaction, the demand for hydrogen produced:
(1 mass fraction of solute) of the solution that will be obtained after the reaction;
(2) , 98% of concentrated sulfuric acid and 20 grams of the laboratory, how many grams of water to prepare 19.6% of dilute sulfuric acid?
Hunan Province, Yiyang City Chemistry Answers
1.C 2.B 3.C 4.DB 6.A 7.A 8.D 9.C 10.B 1E
12.A 13.A 14 . C 15.C 16 B 17.C 18.B 19.D 20. BR / D> 21.B 22.C
(1) 23 (1) 3N2 (2) 2Mg2 +
26 24.Al2O3 25.5, (1) carbohydrates (starch), (2), e.g., fish, meat, eggs, and soybean products
27 Phenolphthalein, litmus, and Dilute hydrochloric acid (HCl), [Ca(OH)2] of lime, soda ash solution (sodium carbonate)
28 Salt 729 filter activated carbon ...... /> 30 (1) organic material that facilitates timely detection and treatment (2) (3) lamp leaks, call the ignition to undress the impact or friction metal
31 A - potassium hydroxide, potassium sulfate phase diagram of the phase diagram of the H2S04 ==, barium sulfate, + BA (OH) 2 ↓ + 2 KOH
32. ② A and B (1) B is more than one lively reaction Completely ③ A ⑤ ④ B H2, H2 lawyers out of the function than the release rate at time t1 when the B, B generates the relative atomic mass of hydrogen than a ⑥ A is more than B
33 (1), yellowish-green, toxicity, stimulation of the density of the relative atomic mass of the density of the greater than the air, with a wet towel to cover the mouth and nose, and the water-soluble gas (fill in at least two)
(2) Calcium Chloride (3), and quickly left the scene. > 34 (1) A, C, E (2) FE203 6 1 hydrochloric acid == 2FeCl3 +3 H2O (3) Caring for the environment is everyone's responsibility to take care of our *** with home, do not trample on the grass life. BR /> 35 (1) Complex (2) Advantages: difficult, corrosion-resistant, low cost, light weight, high strength, thermal insulation Disadvantages: white pollution is harmful to health. (3) Failure is the mother of success, to adhere to the spirit of victory method needs to be innovative, promote teamwork spirit, successful hard work, rise to the challenge, the courage to climb the peak of technology Forum
36 (1) (2) BD (2) (1) a long-necked funnel sinking
+2 hydrochloric acid calcium carbonate = == calcium chloride + H2O + CO2 ↑ the collection of bottles of burning wood look if it is quickly extinguished. (3) Airway water, then remove the alcohol lamp to stop heating. /> (4) less dense than air, does not react with substances in air /> 37 (2) oxidation of carbon powder and copper, (4) H?SO (hydrochloric acid, nitric acid, can also be used) , (5) dissolution of black solids in a mixture of the solution is colorless and black solids are completely dissolved, the solution is blue, the solid black portion is dissolved, and the solution is a mixture of gases of water vapor ( 6) B will affect a
38 blue color and verify. The relative molecular of Sudan? mass of the solution: (1) = 12 + LX 12×16 14×2 + 16 = 248
(2) Mass ratio C:H:N:0 = (12×16):(1×12):(14×2):16 = 48:3:7:4 <BR / (3) Mass fraction of nitrogen = 11.3%
A: (I) Relative molecular mass of Sudan 248;
(2) The mass ratio of the sultan is 48:3:7:4 for the elements carbon, hydrogen, nitrogen, and oxygen;
(3)
=
6.5 gm = 16.1 gm) The mass fraction of nitrogen in the sultanic solution is from 11.3% to 39: (1) What is the mass of the mass of the alloy lying in the x-zn, and what is the mass of the resulting solution of zinc sulphate? The mass fraction of solute in the zinc sulfate solution = 20%
(2) was set to the mass of water required for z, then
20 g, 9.8% = (Z + 20 g) 19.6%, Z = 80?
Due to (1) the resulting solution has a mass fraction of solute of 20%
(2) and 80 g of water.