What are bóng đá hôm nay trực tiếp 1st end-of-semester question papers and answers for 12th-grade Chemistry in bóng đá hôm nay trực tiếp 2024-2025 academic year? What does bóng đá hôm nay trực tiếp equipment used for teaching 12th-grade Chemistry in Vietnam include?

What are bóng đá hôm nay trực tiếp 1st end-of-semester question papersand answers for 12th-grade Chemistry in the2024-2025academic year?

Students may refer to bóng đá hôm nay trực tiếp following1st end-of-semester question papersand answers for 12th-gradeChemistry in the2024-2025academic year:

Sample 1st end-of-semester question papersand answers for 12th-gradeChemistry in the2024-2025academic yearDownload

Sample 1st end-of-semester question papersand answers for 12th-gradeChemistry in the2024-2025academic year

PART I. Multiple-choice questions. Each question has one correct answer.

Question 1: (B) bóng đá hôm nay trực tiếp name of bóng đá hôm nay trực tiếp ester CH3COOC2H5 is

A. Ethyl formate.B. Ethyl acetate.C. Methyl acetate. D. Methyl formate.

Question 2: (H) bóng đá hôm nay trực tiếp hydrolysis of ester X with bóng đá hôm nay trực tiếp formula C4H8O2 produces ethyl alcohol. bóng đá hôm nay trực tiếp name of X is

A. Ethyl propionate. B. Methyl acetate. C. Methyl propionate.D. Ethyl acetate.

Question 3: (B) bóng đá hôm nay trực tiếp main component of soap is

A. Sodium or potassium salts of carboxylic acids.

B. Sodium or potassium salts of any acid.

C. Sodium or potassium salts of fatty acids.

D. Glycerol.

Question 4: (B) Two substances that are isomers of each other are

A. Glucose and starch.B. Fructose and glucose.

C. Sucrose and glucose. D. Fructose and starch.

Question 5: (B) bóng đá hôm nay trực tiếp open-chain structural formula of glucose is

A. CH2OH(CHOH)4CHO.B. CH2OH(CHOH)3COCH2OH.

C. [C6H7O2(OH)3]n. D. CH2OH(CHOH)4CH2OH.

Question 6: (VD) Regarding bóng đá hôm nay trực tiếp chemical properties of glucose and fructose

(a) Both glucose and fructose undergo hydrolysis reactions.

(b) Glucose and fructose exist in open-chain (less) and cyclic (mainly) forms.

(c) Glucose and fructose both form brick-red precipitates with Cu(OH)2/OH when heated.

(d) Glucose and fructose both decolorize bromine water.

bóng đá hôm nay trực tiếp number of correct statements is:

A. 3. B. 4. C. 1 D. 2.

Question 7: (B) Aqueous methylamine solution turns

A. Litmus paper unchanged.B. Litmus paper blue.

C. Phenolphthalein blue. D. Phenolphthalein unchanged.

Question 8: (VD) Consider bóng đá hôm nay trực tiếp following statements:

(1) PVC is an amorphous substance.

(2) Starch glue is made by dissolving starch in water.

(3) Poly(methyl methacrylate) has transparent properties and allows light to pass through.

(4) Lapsan fiber is created by polymerization.

(5) Composite materials have better durability and temperature resistance than component polymers.

(6) Natural rubber is non-conductive, can dissolve in gasoline, benzene, and is flexible.

(7) Nitron fibers are durable and heat-retaining, often used for weaving warm clothing.

bóng đá hôm nay trực tiếp number of incorrect statements is

A. 2.B. 3.C. 4. D. 5.

Question 9: (VD) bóng đá hôm nay trực tiếp average molecular weight of natural rubber and organic glass Plexiglas is 36720 and 47300 (amu). bóng đá hôm nay trực tiếp average number of links in bóng đá hôm nay trực tiếp molecular formula of each type of polymer is

A. 540 and 550.B. 540 and 473.C. 680 and 473. D. 680 and 550.

Question 10: (VD) Consider bóng đá hôm nay trực tiếp following statements:

(1) In all peptide molecules, bóng đá hôm nay trực tiếp C-terminal amino acid must contain bóng đá hôm nay trực tiếp NH2 group.

(2) Glutamic acid is used as a neurological aid.

(3) H2N-CH2-CO-NH-CH2-CH2-COOH is a dipeptide.

(4) bóng đá hôm nay trực tiếp bond of bóng đá hôm nay trực tiếp CO group with bóng đá hôm nay trực tiếp NH group between two α-amino acid units is called a peptide bond.

bóng đá hôm nay trực tiếp number of correct statements is

A. 1. B. 2. C. 3.D. 4.

Question 11: (B) bóng đá hôm nay trực tiếp basic substance to form simple protein molecules is

A. Amino acid.B. Fatty acid. C. Sugars. D. Starch.

Question 12: (B) Which polymer is used as plastic?

A. Nylon-6 B. Nylon-6,6. C. Amylose. D. Polyethylene.

Question 13: (B) Which statement is correct?

A. Condensing buta-1,3-diene with acrylonitrile with Na catalyst produces buna-N rubber.

B. Viscose is a synthetic fiber.

C. Polymerizing styrene obtains poly(phenol formaldehyde).

D. Poly(ethylene-terephthalate) is prepared by condensing bóng đá hôm nay trực tiếp corresponding monomers.

Question 14: (B) Which ion has bóng đá hôm nay trực tiếp strongest oxidizing property?

A. Cu2+.B. Fe3+.C. Mg2+. D. Ag+.

Question 15: (B) Electrolysis is bóng đá hôm nay trực tiếp process of

A. Generating electricity. B. Dissociating substances.

C. Oxidation-reduction.D. Decomposing substances by electricity.

*Note: bóng đá hôm nay trực tiếp information is for reference only./.

What are bóng đá hôm nay trực tiếp 1st end-of-semester question papers and answers for 12th-grade Chemistry in bóng đá hôm nay trực tiếp 2024-2025 academic year? What does bóng đá hôm nay trực tiếp equipment used for teaching 12th-grade Chemistry in Vietnam include? (Image from bóng đá hôm nay trực tiếp Internet)

What does bóng đá hôm nay trực tiếp equipment used for teaching 12th-grade Chemistry in Vietnaminclude?

Under Section 4 of bóng đá hôm nay trực tiếp Appendix of bóng đá hôm nay trực tiếp General Education Program for Chemistry, issued withCircular 32/2018/TT-BGDDT, bóng đá hôm nay trực tiếp equipment used for teaching12th-grade Chemistry in Vietnamincludes:

(1) Equipment for demonstration and proof

- Periodic table of elements; solubility/saturation chart of salts and hydroxides; electron configurations of first-row transition metals/ions; color chart of some transition metal compounds.

- Pictures introducing bóng đá hôm nay trực tiếp geometry of some complex compounds; salts of Cu2+ in water solvents; structures of some biological complexes like heme B, chlorophyll, vitamin B12, and those used in medicine such as cisplatin, carboplatin, etc.; 3R symbols; recycling aluminum; silicate industry; production of cement, ceramics in industry and crafts. Diagrams of distillation, refining, and application of petroleum. Pictures on bóng đá hôm nay trực tiếp applications of alkanes, alkenes, alkadienes, arenes in practice; applications of halogen derivatives; alcohols and phenols in practice; bóng đá hôm nay trực tiếp role of amino acids, bóng đá hôm nay trực tiếp role of glucose, starch in life.

- Models/assembly kits of hollow and solid forms of some alkanes; benzene, halogen derivatives, ethyl alcohol (ethyl alcohol), and phenol; amines, amino acids, peptides, and proteins.

- Electronic teaching materials:

+ Software: Calculation software; virtual experiment software.

+ Videos of some toxic, dangerous explosive experiments, complex experiments, etc., for instance, experiments with chlorine, bromine, etc., alkali metals, alkaline earth metals interacting with water, etc.

(2) Equipment for practice

- Analytical and measuring instruments: Electrolysis equipment for copper (II) sulfate solution and sodium chloride solution; electrical conductivity testing equipment; handheld pH meters, etc.

- Adequate equipment, instruments, and chemicals according to bóng đá hôm nay trực tiếp minimum teaching equipment list prescribed by bóng đá hôm nay trực tiếp Ministry of Education and Training.

What are therequirements on bóng đá hôm nay trực tiếp educational content of12th-grade Chemistry in Vietnam?

According to Article 30 ofEducation Law 2019regarding requirements on contents and methods of general education:

Requirements on contents and methods of general education

1. bóng đá hôm nay trực tiếp contents of general education must ensure bóng đá hôm nay trực tiếp popular, basic, comprehensive, career-orienting, and systematic characteristics; linking with bóng đá hôm nay trực tiếp realities of life, appropriate to bóng đá hôm nay trực tiếp psycho-physiological characteristics of students, meeting bóng đá hôm nay trực tiếp objectives of education at each level.

2. Requirements on bóng đá hôm nay trực tiếp contents of general education at each level are regulated as follows:

a) Primary education must guarantee students bóng đá hôm nay trực tiếp foundation for comprehensive development of physical and emotional health, social skills, simple and necessary knowledge about nature, society and human being; with social moral awareness; with basic skills in listening, reading, speaking, writing and calculating; with habits of physical exercise and hygiene; and with initial understanding of singing, dancing, music and arts;

b) Lower secondary education shall consolidate and develop bóng đá hôm nay trực tiếp contents learned in primary education, guarantee students bóng đá hôm nay trực tiếp basic general knowledge in Vietnamese, mathematics, national history, other knowledge in social sciences, natural sciences, law, informatics, foreign languages; with introductory understanding on techniques and career-orientation.

c) Upper secondary education shall consolidate and develop bóng đá hôm nay trực tiếp contents learned in lower secondary education, complete bóng đá hôm nay trực tiếp contents of general education. Besides guaranteeing bóng đá hôm nay trực tiếp general, basic, comprehensive and career-orienting knowledge for all students, there shall be advanced teaching in some subjects to develop bóng đá hôm nay trực tiếp students' abilities and satisfy their needs.

3. bóng đá hôm nay trực tiếp methods of general education are to promote bóng đá hôm nay trực tiếp activeness, consciousness, initiatives and creativeness of students; to be appropriate to bóng đá hôm nay trực tiếp characteristics of each subject, class and student; to nurture bóng đá hôm nay trực tiếp methods of self-study, bóng đá hôm nay trực tiếp joy of learning, bóng đá hôm nay trực tiếp ability to work in team, bóng đá hôm nay trực tiếp ability of independent thinking; to develop comprehensively in dignity and ability; to enhance bóng đá hôm nay trực tiếp application of information technology and communications to education.

Thus, under bóng đá hôm nay trực tiếp aforementioned regulations, bóng đá hôm nay trực tiếp educational content of 12th-grade Chemistry shall consolidate and develop bóng đá hôm nay trực tiếp contents learned in lower secondary education, and complete bóng đá hôm nay trực tiếp contents of general education. Besides guaranteeing bóng đá hôm nay trực tiếp general, basic, comprehensive and career-orienting knowledge for all students, there shall be advanced teaching in some subjects to develop bóng đá hôm nay trực tiếp students' abilities and satisfy their needs.