# Overview of the various hydrogenation options

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Have you completed the learning unit Overview of the various hydrogenation options and are you looking for further material? Then we recommend the following learning units:

### Hydrogenation of alkenes with noble metal catalysts20 min.

#### ChemistryOrganic chemistryReduction reactions

This learning unit deals with the hydrogenation of alkenes with noble metal catalysts. The mechanism is shown using animations. The stereochemistry and chemoselectivity are also discussed.

### Hydrogenation of alkynes with the Lindlar catalyst20 min.

#### ChemistryOrganic chemistryReduction reactions

This learning unit describes the hydrogenation of alkynes with the Lindlar catalyst. The catalyst is discussed and the stereochemistry is shown.

### Hydrogenation of aromatics20 min.

#### ChemistryOrganic chemistryReduction reactions

In this learning unit the catalytic hydrogenation of aromatics is presented (mechanism, stereochemistry, selectivity). The application in industry is explained by way of example.

### Hydrogenation with diimine20 min.

#### ChemistryOrganic chemistryReduction reactions

This learning unit describes the reduction by hydrogenation with the hydrogen donor diimine. The mechanism and practical implementation are discussed.

### Heterogeneous catalysis10 min.

#### Chemistrytechnical chemistryReaction engineering

In addition to a brief introduction to the subject of "heterogeneous catalysis", some historical discoveries and milestones in catalyst development are shown.

## Overview

As the title "How do I create H5P exercises?" Suggests, this is about providing help for creating interactive exercises with the H5P program package.
The articles in this directory are primarily aimed at people who want to create exercises with the H5P installation of the state education server.

In this directory you will be offered the following:

• a brief overview of the technical requirements of the H5P installation that the state education server uses
• as a kind Starter kit a guide for creating H5P exercises
• a tabular overview of the content types used by the state education server
• Instructions for creating exercises of these types of content:
: Drag & Drop, Multiple Choice: True / False Question, Question Set
• What H5P is and how it differs from related programs for creating interactive exercises is explained in the article H5P - A Brief Introduction.

And finally there is the link list with (almost) all interactive exercises created with H5P on the state education server.

## Top 5 YouTube channels for learning - all-rounders

(Source: st.depositphotos.com)

Digital platforms such as YouTube play a key role in the corona crisis. YouTube channels can now help keep learning going outside of school. In our Teachers section on YouTube, we have already put together the best YouTube channels for learning for the individual subjects. Today we present you our personal top 5 all-rounders from this large selection. Each of these channels offers explanatory videos for many different subjects, so that you don't have to look for a separate channel for each subject. Have fun while reading.

#### Simple Club

Source: https://yt3.ggpht.com/a/AATXAJyiG3_xUtWZHqAWjbmxJwywS_GfSxuIvCZh_w=s288-c-k-c0xffffffff-no-rj-mo

With 2.9 million subscribers, over 2000 videos and more than 350 million views on YouTube, the SimpleClub channels are among the largest German-speaking YouTube channels in the education sector. SimpleClub founders Alexander Giesecke and Nicolai Schork reach several thousand schoolchildren all over Germany every day through their videos, spread over a total of 11 different channels, each dealing with a specific subject. Next to the mint compartments Math, biology, physics, chemistry and Computer science Simpleclub also covers the areas Economy, history and geography away.

You can also find out more about SimpleClub in our article about the platform.

#### The memory aid

Source: https://i.ytimg.com/vi/suZvzgZH2-c/hqdefault.jpg#

The six “Die Merkhilfe” channels together have around 168 thousand subscribers and over 28 million views.
The wide range on offer is particularly noteworthy, at “Die Merkhilfe” you will find tutoring videos for 18 different subjects: Biology, German, English, math, geography, history, Spanish, philosophy, physics, chemistry, religion, economics, computer science, politics, society, law, psychology and Sports.

You can find out more about “Die Merkhilfe” in our article.

#### Must knowledge & # 8211 funk

Over 600 thousand subscribers have the 5 must-know channels in total. On the individual YouTube channels for the subjects German, mathematics, history, physics and chemistry there are separate playlists for all relevant topics. The content of the videos is also tailored to the curricula of the various federal states and school types.

If you want to find out more about must-have knowledge, you can also read our article on it.
You can find the channels here: https://www.youtube.com/channel/UCzOHLoNwbebvEkn7y6x-EWA/channels

#### Duden Learn Attack

Source: https://yt3.ggpht.com/a/AATXAJy0WP3b16BXixivRUVsOesVal709z0dTJIOkA=s288-c-k-c0xffffffff-no-rj-mo

With just 15,500 subscribers, Duden Learnattack is a real insider tip on YouTube. On the channel you will find over 200 explanatory videos on 9 different subjects: German, Latin, history, English, math, biology, chemistry, physics and French. The videos are clearly sorted by subject in playlists and usually do not take longer than 5 minutes. The Latin playlist is particularly commendable, because good Latin videos are a real rarity on YouTube.

You can find the channel here: https://www.youtube.com/channel/UCWITqPiqvb4lQGY7X2tWMTw/playlists

#### Mr math

Sorted by class, HerrMathe offers explanatory videos for the subject in its playlists mathematics at. The material of the respective video is presented clearly and clearly.
The material of his videos ranges from subjects of the fifth grade to those of the upper grades. In addition to mathematics, the canal also includes subjects physics and chemistry treated.

These were our top 5 all-rounders. Do you know other YouTube channels for lessons

## Power functions

### Notice

Power functions are called all functions of the form: $f (x) = a cdot x ^$, where $a$ and $n$ are arbitrary real numbers.

In the following we consider power functions with whole exponents. Depending on which number the exponent is, there is a different function. A distinction is made here between four different cases:

### Even and positive exponents

the Functions always have the points $P_1 (-1 | 1)$, $S (0 | 0)$, $P_2 (1 | 1)$.

the only one Zero lies in the origin.

Of the Domain of definition includes all real numbers, so D = .

Of the Range of values is W = [0 & infin [

The graph is axially symmetrical to the Y-axis.

### Odd and positive exponents

the Limit values strive for x 0 + & infin.

the Functions have these points in common: $P_1 (-1 | -1)$, $S (0 | 0)$, $P_2 (1 | 1)$.

the only one Zero lies in the origin.

Of the Domain of definition and the range of values ​​are D = W = .

The functions are point-symmetrical to the origin.

### Even and negative exponent

the Limit values are then as follows:

If x strives for the value 0 (so the value always comes closer to the number zero), the y-values ​​strive for + & infin.

If x strives for the value - | + & infin, the y values ​​strive for 0.

The functions have these points in common: $P_1 (-1 | 1)$, $P_2 (1 | 1)$.

There is no Zero.

Of the Domain of definition is D = <0>.

Of the Range of values is W =] 0 & infin [. These are all positive real numbers.

The functions are all axially symmetrical to the y-axis.

### Odd and negative exponents

the Limit values are as follows:

Both the x and y axes are asymptotes.

the Functions have these points in common: $P_1 (-1 | -1)$, $P_2 (1 | 1)$.

There is no zeropoint.

Of the Domain of definition and the Range of values are D = W = <0>.

The functions are point-symmetrical to the origin.

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The course combines the competencies of the three departments in a curriculum and thus creates an overarching understanding of the characteristics of different material classes such as metals and alloys, plastics and polymers, glasses and optical materials, semiconductors and composite materials. It is suitable for prospective students who are enthusiastic about chemistry, physics or mechanical engineering and thus have a scientific-technical interest. The course content is evenly distributed over the three areas, each with a large internship.

In the advanced course, a large elective area offers the opportunity to give space to individual interests and strengths in different areas (see illustration). At this point, events (lectures and internships) from the three areas of chemistry, physics and mechanical engineering can be freely combined. A specific combination of modules is only recommended for a specialization in the area of ​​coating technology. The bachelor thesis is prepared during the semester and here, too, the students can freely choose the project to be worked on from the offer of the working groups involved in the course.

## Carboxylic acids

On the five presentation slides on the subject of carboxylic acids there is a brief overview of the functional group, homologous series of alkanoic acids, carboxylic acids with different radicals (aliphatic, saturated, unsaturated, aromatic), properties (polarity, acid).

Chemistry members can download the slides in PowerPoint, Impress and PDF formats.

## Master copy: functional groups

On an A4 page there is an overview of the functional groups in organic chemistry. Haloalkanes, alcohols, ethers, aldehydes, ketones, carboxylic acids, esters, nitro compounds and amines will be presented.

The table contains the substance class with the prefix and / or suffix, an example with structural formula and 3D molecule as well as the functional group and its symbolic notation.

The master copy is suitable for giving students a quick overview of the functional groups in organic chemistry in chemistry lessons.

Chemistry members can download the master copy in Word, Writer and PDF formats.