(full mark 100, test time 90 minutes), relative atomic mass can be used. 65 zinc 65
A multiple-choice question (2: 44, only one question meets the requirements of the topic)
1.200465438+On February 26th, the Indian Ocean tsunami disaster shocked the world. The following are chemical changes ()
A. Houses collapsed, tracks rusted and roads were destroyed.
A. air separation of rare gases B. frozen distilled water
C. Pig iron D. Iron ore smelting and heating .../> 3。 The uses, properties and other three fundamental differences of the following substances ()
A. dry ice is used to fill balloons and artificial rainfall.
C. magnesium powder fireworks and flares? Copper (southbound)
4。 In the following statement () A.B. Seawater desalination has metal corrosion protection.
C. oily wastewater D. fresh water br/> 5, which lacks scientific basis. Quality level, quality and conditions:
The air pollution index is 0-5051-101-200 201-300 > 300.
Correspondence between API with good air quality. Light pollution, moderate pollution and serious pollution.
Air quality grade one, two, three, four and five.
On June 3, 20 10, the air pollution index of Yiyang city was 82? 93. From the above information, is the air in Yiyang a day? Quality and Air Quality Status ()
One: the talents at my level have a good effect, with II, II, C, III and III slightly polluted and D. V heavily polluted.
6。 On February 16, 2005, Kyoto Protocol came into effect, and its core significance is to reduce greenhouse gas emissions and control global warming. Major greenhouse gases ()
Carbon A. Carbon dioxide B. Oxygen C. Nitrogen D. Hydrogen
7。 The main mineral components and contents of mineral water are printed on the label as follows (unit: mg/L): CA-20, K? Zinc 0.06 F? 0.02。 Here, calcium, potassium, zinc and fluorine ()
AB element atom. Element D. ion
8。 Burning wood, usually the cost of burning wood is higher, because ()
A. Growth of cooling rate B. Heat
C quickly collect wood ignition point, reduce contact area with air, and improve electronic firewood.
9。 Then modify the following chemical equation ()
A. iron filings dissolved in dilute sulfuric acid:++3 H2SO4 == 2FE Fe2 (SO4) 3+3H2 =
B. salt-soluble potassium nitrate solution of B.NaCl+KNO3. = = sodium nitrate+potassium chloride
C. Burning charcoal with insufficient oxygen: 2C+
O2 2C0 D. Decomposition of hydrogen peroxide:
10。 It is easy to set off firecrackers, which is harmful to individuals and the environment. Yiyang city has issued a prohibition order in the urban area. High school students should take the lead in obeying, but it is also a good publicity and explanation. No firecrackers sign ()
1 1。 Solute A is soluble in water, and the obtained solution shall not be changed () compared with water.
A. boiling point B. conductivity C. color D. composition of water molecules
12。 The following table shows that in different pH ranges:
Colors red, orange, green, blue and purple
Color of pH indicator with pH in the range of 1-3. 4? 56? 78? 10 1? 14
Droplets of indicator lamp mixture are added into a small amount of dilute hydrochloric acid and sodium hydroxide solution drop by drop, and the color changes ()/a >
A. from green to blue, red B. blue orange C. green D. from purple to red
13。 The right part of the fertilizer packaging bag in the fertilizer production plant belongs to ()
A. nitrogen B. phosphorus C. description of potassium fertilizer D. compound fertilizer
14。 Scientists predict that hydrogen will be the main energy source in 2 1 century, but besides the production of hydrogen in energy consumption, we must first solve the problem, but we must also solve it.
A. material B. environmental pollution limitbr/> c it is inconvenient to release hydrogen during storage and transportation D. the combustion heat is low.
15。 Yiyang preserved eggs are famous all over the country and exported to Southeast Asian countries. The production components of salt, soda ash, lime and fly ash, contain potassium carbonate, water, rice bran, rice husk and other auxiliary materials. The main components of quicklime and hydrated lime react with water, and it is inferred that the most likely reaction is the first metathesis reaction ()
Chemical reaction A in BCD displacement reactor is in decomposition reaction.
16。 Four drug laboratory cabinets store the following drugs:
Medicine cabinets b, c and?
Drugs: zinc salt, copper salt and sodium salt, sulfuric acid, sodium hydroxide and hydrochloric acid.
Dilution of iron, magnesium, sodium bicarbonate, potassium hydroxide and sulfuric acid
Two bottles of anhydrous calcium chloride should be () after passing through the laboratory.
A. Cabinet B.B. Shell C. Cabinet D. Small cabinet .../> 17。 Under the following conditions, the buried corrosion rate of cast iron pipes is the fastest ()
ab blood type
CD in dry, dense soil wetting, loose soil wetting and dry soil dense soil loosening/a >; ; 18。 The annual World Environment Day, June 5th, World Environment Day theme: Everyone participates in creating a green home. The following does not conform to this theme is ()
C.
A. forest B. returning farmland to forests and widely used disposable foamed plastic tableware are prohibited from using phosphorus-free detergent D. coal stove BR /> 19. Without using pH indicator and calcium chloride solution, a small amount of hydrochloric acid can be removed to obtain pure calcium chloride solution and the most suitable selected reagent ().
Silver nitrate solution B. transparent lime
C. quicklime powder D. calcium carbonate powder
20。 Lime, limestone, limestone mass of 90% calcium carbonate (relative atomic mass: CA-40 C- 12O- 16) produced by lime calciner.
A. 1620 tons B. 800 tons Celsius. 1900 tons, 2000 tons
2 1。 Correct the solubility curve to make sure that the following statement is incorrect ()
A: that solubility of substance T 1℃ is less than that of substance B.
B in the saturated solution of c, a and b at T2℃, substances a and b have the same mass.
C, cooling the saturated solutions c, T3, a and b to t2 DEG C, and precipitating crystals.
D, mixing with a small amount of substance b, and cooling the purified product of the hot saturated solution.
On May 22nd, 2005, a batch of bronze wares of the Warring States Period were unearthed in Huxing Mountain, Ziyang District, Yiyang City. In fact, as early as the Shang Dynasty, they were able to make exquisite bronzes, and during the Warring States period, they were able to smelt steel with iron. The quality and intensity of time series activities of a single metal developed and utilized by human beings are intrinsically related. It can be inferred that when the reporter asked about the development of people and the order of using metals ().
A. copper, iron, zinc and aluminum
C. copper, iron, zinc, aluminum and zinc, iron and copper
Quantity Ⅱ
Fill in the blanks (this question ***20 points)
23。 Please write the following chemical symbols:
(1) triazine molecule (2) two magnesium ions
24。 The maximum content of elements formed on compounds of this chemical formula, and the maximum content of metal elements in human body and crust.
25。 The chemical molecular formula of ampicillin is C16h19N3O4S 3H2O, and its main components are listed in the safety ratio of the first commonly used anti-inflammatory drug.
26。 Chemistry is closely related to human health. Some important nutrients, such as sugar, starch, fat, protein, vitamins and other important life activities. In the body, high school students, not partial eclipse, not picky eaters, daily balanced nutrition intake is the key period of growth and development.
(1) Students usually only eat meat and vegetables instead of meals, and the symptoms such as weakness, fatigue and even coma caused by the lack of protein, as well as his lack of nutrients;
(2) entrance examination for students after graduation. If you are a doctor, you will advise him to eat with normal eating habits.
27。 After cleaning up the experimental drugs in the laboratory, it was found that the colorless label of the solution bottle was missing, only the reagent Na2CO3 solution and BaCl2 solution were known. Two chemical methods (writing chemical formula or name identification) are determined: (1), (2).
28。 Last year, in Yuejia Town, Heshan District, in order to prevent the spread of avian influenza, in addition to quickly isolating infected poultry cages, tools were also disinfected. Disinfectant potassium permanganate (KMnO4) belongs to valence manganese (fill in "oxide" acid and "alkali" or "salt").
April 29th Basic Principles School, Home Office Water Purifier? The water purification equipment can show gravel, sand or similar adsorbents on the right.
30。 According to the plan of "West-East Gas Transmission", Yiyang will use natural gas in the near future. Natural gas is a colorless and odorless gas with lower density than air, which is easy to explode, antistatic and fireproof. Natural gas has a strong irritating smell (mercaptan) when transported. Register/>; The main components of (1) are methane and natural gas, which belong to the object of inorganic substances (in "organic" or "filling"); /& gt； (2) conveying gas mixed with sulfuric acid
(3) When indoor gas leaks, close the valve immediately and open the window for ventilation. Don't make up for (anything) BR/& gt；; 3 1。 B, C and D are common potassium compounds. Reaction The relationship between them is as follows:
( 1)2A+B = C+2 H2O②ba2so 4↓+AC+D = =
③ Copper sulfate = = barium sulfate ↓+ D+Cu(OH )2↓
According to the above information, infer chemical formula B: A, B, chemical equation: Write reaction ②.
32 The relationship between the mass fraction time (t) of solute in the correct analysis and the mass (m) produced by the reaction, as shown in the figure, can be obtained from any written material (2) of this information.
( 1)
(2)3 short answer questions, (subject *** 10)
On the evening of May 29th, 33, in 2005, two cars collided on the expressway from Beijing to Shanghai in Huai 'an City, Jiangsu Province, causing a large area? Liquid chlorine gas (Cl2) leaked from the fuel tank leads to yellow-green gas in roadside houses near vehicles. At the scene of the accident, you can see the pungent smell in the sky, causing heavy casualties to the villagers. Firefighters must wear air respirator and protective clothing, and use high-pressure water spray and alkaline liquid chlorine in the air to eliminate chlorine pollution, ground subsidence and damage.
(1) Summary of the above information
(2) Rescue, physical chlorine (chlorine) in calcium (OH)2 solution: spray absorbed chlorine.
2Cl2 has a known chemical formula of Ca(OH reaction 2 == X)+ 2 +2 H2O in Ca(ClO) in formula (2), please tell10/> (3) The villagers near the construction site take measures to protect themselves.br/>. At the end of the test, when you leave your alma mater after graduating from junior high school, your last impression is that you should leave the plants and trees taken care of by the school and don't throw things around. Suppose, when you put my things
A. waste clean up the following items, here B. rotten apples, C. cans, bottles, D. moldy biscuits, E. rusty nails.
(1) should be put into recyclable garbage (fill in serial number);
(2) The nails rusted with hydrochloric acid (mainly iron oxide) can be reused. Please write the chemical equation of rust prevention.
(3) Please write this suggestion if other senior students are in the school environment.
35。 Materials science has become the most advanced and popular subject in the world. Materials are generally divided into metallic materials, inorganic nonmetallic materials, synthetic materials and composite materials. On March 28th, 2005, he was named as an academician of China People's Engineering College. The microstructure of the research group of Central South University was led by the president, because they invented the high-performance carbon/carbon brake aviation material technology. Micro-structure Yiyang county, after 20 years, he and his innovative team worked hard for 1000 days and nights, and finally succeeded. After numerous failures, it not only broke the monopoly and blockade in Europe and America, but also achieved better results.
(1) carbon-carbon aviation brake material "Two different carbon materials, carbon, are the essence of aviation brake materials.
(2) The widespread use of composite materials has both advantages and disadvantages. You should give priority to any unfavorable factors. Advantages and disadvantages of.
(3) What do you think of the advanced deeds of exploring microstructure scientifically?
Four experimental questions (subject *** 16)
At the age of 36, you have mastered the gas law in the laboratory and answered questions about your equipment. (Reminder: Please fill in the equipment code for the selected equipment below)
(1) Write the name of the specified instrument: ①;
(2) In the laboratory system, carbon dioxide is collected for reaction, and in the test device, these two devices should be used to connect to the complete collection device.
(3) Laboratory O2 and KMn04 generation, equipment selection, equipment and electronic equipment O2 collection are stopped. Collection device; BR /(4)CA gas, natural gas.
37。 Learn from the school team about the experimental exploration of copper (OH)2CO3 wrapped in black powdery solid black, and analyze and verify the generation of pyrolysis gas carbon dioxide and water vapor in the test tube. Please fill in the blanks:
(1): What is black solid conjecture and hypothesis?
(2): black community: b copper oxide toner ..
(3) obtaining information: charcoal and black copper oxide solid toner react with dilute acid, dissolve in dilute acid, and dissolve in dilute acid to react with copper oxide.
(4) Experimental design: The idea is to fill enough solution (in the chemical formula) in the test tube, and the solid will dissolve in the full reaction, and the solution will develop color.
(5 Phenomenon and conclusion: If your suspicion is correct, if you have time, are you right? The phenomenon of speculation.
> (6) Appropriate equipment verifies the equipment produced by the gas mixture produced by two gases, and vice versa. What kind of impact will it have? Gas equipment should pass the verification process.
V BR />38。 Sudan red is a synthetic red dye. Recent research shows that the most common form of Sudan red is to increase the known mutagenic and carcinogenic metabolites. The title of the country is to conduct strict investigation and handling of food, C 16H 12NO, in the Sudan chemical formula:
(1) The relative molecular weight of Sudan;
(2) The proportion of elements in Sudan;
(3) The mass fraction of nitrogen in Sudan Red.
39。 Zinc and copper alloy investment dilute H 2 SO 4, only 74.2g and 0.2g, and the hydrogen demand generated by this reaction is:
(1 mass fraction of solute) to obtain a solution;
(2) How many grams 19.6% dilute sulfuric acid should be prepared from 98% concentrated sulfuric acid and 20 grams of laboratory water?
Chemistry Answer of Yiyang City, Hunan Province
1.C 2。 B 3。 C 4 explosive DB 6。 A seven. An eight. D 9。 C 10。 B 1E
12.A 13。 A 14..C 15。 C 16 B 17。 C 18。 B 19。 Grass 20.br/d > 2 1.B 22。 C
( 1)23( 1)3N2(2)2Mg2 +
26 24.Al2O3 25.5, (1) carbohydrate (starch), (2) such as fish, meat, eggs and bean products.
27 phenolphthalein, litmus, dilute hydrochloric acid (HCl), lime [Ca(OH)2], soda solution (sodium carbonate)
28 salt 729 filter activated carbon .../>; 30( 1) Organic substances that can be found and treated in time (2)(3) The lamp leaks electricity. Please tell it to take off clothes and knock or rub the metal.
3 1 A- potassium hydroxide, potassium sulfate H2SO4 = =, barium sulfate, +BA(OH)2↓+2 KOH are in the phase diagram.
32。 ②A and B( 1)B are more complete than a lively reaction; ③ The functional specific release rate at t 1 given by A54bh2 and H2 lawyers; The relative atomic mass ratio of hydrogen generated by B and B; A is better than B.
33( 1), yellow-green, toxic and irritating. The relative atomic mass density is greater than that of air. Cover your nose and mouth with a wet towel to dissolve the air (fill in at least two).
② Calcium chloride ③, and leave the scene quickly. & gt34( 1)A, C, E(2)fe2o 3 6 1 hydrochloric acid == 2FeCl3 +3 H2O(3) It is everyone's responsibility to care for the environment and our home, and not to trample on the grass. BR/>； 35( 1) composite (2) advantages: difficulty, corrosion resistance, low cost, light weight, high strength, heat preservation disadvantages: white pollution is harmful to health. Failure is the mother of success. Adhering to the method of spiritual victory requires innovation, advocating team spirit, striving for success, facing difficulties and bravely climbing the technical summit forum.
36( 1)(2)BD(2)① The long-necked funnel sinks.
+2 calcium carbonate hydrochloride = = calcium chloride+H2O+CO2 = the appearance of burning wood in a collection bottle, if it goes out soon. (3) Breathe water, then take out the alcohol lamp and stop heating. /& gt； (4) The density is less than that of air, and the substance that does not react is in air/>; 37(2) Oxidation of carbon powder and copper, (4)H? Therefore, (hydrochloric acid and nitric acid can also be used), (5) In the mixture of dissolved black solid, the solution is colorless and the black solid is completely dissolved, and the solution is blue, and the black part of the solid is dissolved. The solution (6) B in the gas mixture of water vapor will affect one.
38 Blue verified. Solution of relative molecular weight of Sudan: (1) =12+LX12×1614× 2+16 = 248.
(2) The mass ratio of C: H: N: 0 = (12×16): (1×12): (14× 2):16. The mass fraction of nitrogen in BR /(3) = 1 1.3%.
A: (1) The relative molecular mass of Sudan is 248;
(2) The mass ratio of carbon, hydrogen, nitrogen and oxygen in Sudan is 48: 3: 7: 4;
(3
=
6.5 gory =16.1g)11.3% The mass fraction of nitrogen in Sudan solution is 39:( 1), which is located in the mass of X zinc alloy. The obtained solution is zinc sulfate. Mass fraction of solute in zinc sulfate solution = 20%
(2) Set the water quality required by Z, and then
20g，9.8% = (z+20g) 19.6%，Z = 80？
Guangdong: The mass fraction of solute in (1) solution is 20%.
(2) and 80 grams of water.