USE result in chemistry not lower than the minimum established number of points gives the right to enter universities in the specialty, where in the list entrance examinations There is a chemistry subject.

Universities do not have the right to set a minimum threshold for chemistry below 36 points. Prestigious universities tend to set their minimum threshold much higher. Because in order to study there, first-year students must have very good knowledge.

On the official website of the FIPI, versions of the Unified State Examination in Chemistry are published every year: demonstration, early period. It is these options that give an idea of ​​the structure of the future exam and the level of complexity of tasks and are sources of reliable information in preparing for the exam.

Early version of the exam in chemistry 2017

Demonstration version of the Unified State Examination in Chemistry 2017 from FIPI

AT USE options in chemistry in 2017, there are changes compared to the KIM of the last 2016, so it is advisable to train according to the current version, and for the diverse development of graduates, use the options from previous years.

Additional materials and equipment

For each version of the exam USE work In chemistry, the following materials are attached:

− periodic system chemical elements DI. Mendeleev;

− table of solubility of salts, acids and bases in water;

− electrochemical series of voltages of metals.

At runtime examination work use of a non-programmable calculator is permitted. The list of additional devices and materials, the use of which is allowed for the Unified State Examination, is approved by the order of the Ministry of Education and Science of Russia.

For those who want to continue their education at a university, the choice of subjects should depend on the list of entrance tests for the chosen specialty
(direction of training).

The list of entrance examinations in universities for all specialties (training areas) is determined by the order of the Russian Ministry of Education and Science. Each university chooses from this list those or other subjects that are indicated in its admission rules. You need to familiarize yourself with this information on the websites of selected universities before applying for participation in the Unified State Examination with a list of selected subjects.

Sodium nitride weighing 8.3 g reacted with sulfuric acid with a mass fraction of 20% and a mass of 490 g. Then crystalline soda weighing 57.2 g was added to the resulting solution. Find the mass fraction (%) of the acid in the final solution. Write down the reaction equations that are indicated in the condition of the problem, give all the necessary calculations (indicate the units of measurement of the required physical quantities). Round your answer to the nearest whole number.

Real USE 2017. Task 34.

The cyclic substance A (does not contain oxygen and substituents) is oxidized with a cycle break to substance B weighing 20.8 g, the combustion products of which are carbon dioxide with a volume of 13.44 l and water with a mass of 7.2 g. Based on the given conditions of the assignment: 1) perform the calculations necessary to establish the molecular formula of organic matter B; 2) write down the molecular formulas organic matter A and B; 3) compose structural formulas organic substances A and B, which unambiguously reflect the order of bonding of atoms in a molecule; 4) write the reaction equation for the oxidation of substance A with potassium permanganate sulfate solution to form substance B. In the answer for the site, indicate the sum of all atoms in one molecule of the original organic substance A.

On November 14, 2016, the approved demo options, codifiers and specifications of control measuring materials for the unified state exam and the main state exam in 2017, including in chemistry.

Demo version of the exam in chemistry 2017 with answers

Demo versions of the exam in chemistry 2016-2015

There were significant changes in KIM in chemistry in 2017, so demo versions of past years are given for review.

Chemistry - significant changes: The structure of the examination paper has been optimized:

1. The structure of part 1 of the KIM has been fundamentally changed: tasks with a choice of one answer have been excluded; tasks are grouped into separate thematic blocks, each of which contains tasks of both basic and advanced levels of complexity.

2. Reduced the total number of tasks from 40 (in 2016) to 34.

3. The assessment scale (from 1 to 2 points) for completing tasks of the basic level of complexity, which test the assimilation of knowledge about the genetic relationship of inorganic and organic substances, has been changed (9 and 17).

4. The maximum initial score for the performance of the work as a whole will be 60 points (instead of 64 points in 2016).

The duration of the exam in chemistry

The total duration of the examination work is 3.5 hours (210 minutes).

The approximate time allotted to complete individual tasks is:

1) for each task of the basic level of complexity of part 1 - 2-3 minutes;

2) for each task of an increased level of complexity of part 1 - 5–7 minutes;

3) for each task of a high level of complexity of part 2 - 10-15 minutes.

USE 2017 Chemistry Typical test tasks Medvedev

M.: 2017. - 120 p.

Typical test tasks in chemistry contain 10 options for sets of tasks, compiled taking into account all the features and requirements of the Unified State Exam in 2017. The purpose of the manual is to provide readers with information about the structure and content of KIM 2017 in chemistry, the degree of difficulty of tasks. The collection contains answers to all test options and provides solutions to all tasks of one of the options. In addition, examples of forms used in the exam are given to record answers and decisions. The author of the tasks is a leading scientist, teacher and methodologist, who is directly involved in the development of control measuring instruments. USE materials. The manual is intended for teachers to prepare students for the exam in chemistry, as well as for high school students and graduates - for self-training and self-control.

Format: pdf

The size: 1.5 MB

Watch, download:drive.google

CONTENT
Preface 4
Work instructions 5
OPTION 1 8
Part 1 8
Part 2, 15
OPTION 2 17
Part 1 17
Part 2 24
OPTION 3 26
Part 1 26
Part 2 33
OPTION 4 35
Part 1 35
Part 2 41
OPTION 5 43
Part 1 43
Part 2 49
OPTION 6 51
Part 1 51
Part 2 57
OPTION 7 59
Part 1 59
Part 2 65
OPTION 8 67
Part 1 67
Part 2 73
OPTION 9 75
Part 1 75
Part 2 81
OPTION 10 83
Part 1 83
Part 2 89
ANSWERS AND SOLUTIONS 91
Answers to the tasks of part 1 91
Solutions and answers to the tasks of part 2 93
Solution of tasks of option 10 99
Part 1 99
Part 2 113

The present tutorial is a collection of tasks to prepare for the Unified State Exam (USE) in chemistry, which is like a final exam for the course high school as well as university entrance exams. The structure of the manual reflects modern requirements for the procedure passing the exam in chemistry, which will allow you to better prepare for new forms of final certification and for admission to universities.
The manual consists of 10 options for tasks, which in form and content are close to the demo version of the Unified State Examination and do not go beyond the content of the chemistry course, which is normatively determined by the Federal component state standard general education. Chemistry (Order of the Ministry of Education No. 1089 dated March 5, 2004).
Content Presentation Level educational material in tasks it is correlated with the requirements of the state standard for the preparation of graduates of a secondary (complete) school in chemistry.
Three types of tasks are used in the control measuring materials of the Unified State Exam:
- tasks of the basic level of complexity with a short answer,
- tasks of an increased level of complexity with a short answer,
- tasks of a high level of complexity with a detailed answer.
Each version of the examination paper is built according to a single plan. The work consists of two parts, including a total of 34 tasks. Part 1 contains 29 short answer items, including 20 basic difficulty items and 9 advanced difficulty items. Part 2 contains 5 tasks of a high level of complexity, with a detailed answer (tasks numbered 30-34).
In tasks of a high level of complexity, the text of the solution is written on a special form. Tasks of this type make up the bulk of the written work in chemistry at the entrance exams to universities.

Typical test tasks in chemistry contain 10 options for sets of tasks, compiled taking into account all the features and requirements of the Unified State Exam in 2017. The purpose of the manual is to provide readers with information about the structure and content of KIM 2017 in chemistry, the degree of difficulty of tasks.
The collection contains answers to all test options and provides solutions to all tasks of one of the options. In addition, examples of forms used in the exam are given to record answers and decisions.
The author of the tasks is a leading scientist, teacher and methodologist, who is directly involved in the development of control measuring materials for the exam.
The manual is intended for teachers to prepare students for the exam in chemistry, as well as for high school students and graduates - for self-training and self-control.

Examples.
Ammonium chloride contains chemical bonds:
1) ionic
2) covalent polar
3) covalent non-polar
4) hydrogen
5) metal

From the proposed list of substances, select two substances, with each of which copper reacts.
1) zinc chloride (solution)
2) sodium sulfate (solution)
3) dilute nitric acid
4) concentrated sulfuric acid
5) aluminum oxide

CONTENT
Foreword
Work instructions
OPTION 1
Part 1
Part 2
OPTION 2
Part 1
Part 2
OPTION 3
Part 1
Part 2
OPTION 4
Part 1
Part 2
OPTION 5
Part 1
Part 2
OPTION 6
Part 1
Part 2
OPTION 7
Part 1
Part 2
OPTION 8
Part 1
Part 2
OPTION 9
Part 1
Part 2
OPTION 10
Part 1
Part 2
ANSWERS AND SOLUTIONS
Answers to the tasks of part 1
Solutions and answers to the tasks of part 2
Solution of tasks of option 10
Part 1
Part 2.

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• USE 2019, Chemistry, Expert in the USE, Medvedev Yu.N., Antoshin A.E., Ryabov M.A.
• OGE 2019, Chemistry. 32 options, Typical test tasks from the developers of the OGE, Molchanova G.N., Medvedev Yu.N., Koroshenko A.S., 2019
• Chemistry, Unified State Exam, Preparing for the final certification, Kaverina A.A., Medvedev Yu.N., Molchanova G.N., Sviridenkova N.V., Snastina M.G., Stakhanova S.V., 2019