Alkanes Teacher Resources
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Properties of organic compounds are listed as an introduction to this presentation. Topics touched on include the general structure of an alkanes, how to name them, and how to balance related combustion reactions. The presentation is a complete package: informative, practical, and attractive!
Given the line structure or IUPAC name, advanced chemists provide the line structure or chemical name for twenty alkanes. This straightforward assignment can be given as homework during your organic chemistry unit.
Some alkanes have a cyclic structure and some have a halogen substituted for a carbon. Chemguy demonstrates how to draw and name these compounds on his whiteboard. Though not entertaining, our host is a talented teacher who educates effectively. While these presentations should not take the place of your lecture, they can be used as a review or homework.
Now that young chemists have learned how to name aliphatics and alkanes, they begin to understand the structure and shape of the resulting molecules. Chemguy uses models of molecules in this fourth of 16 organic chemistry videos. The best use of these videos is to assign them to chemistry learners who might have missed your in-class lesson on the topic.
Aliphatics are straight-chained molecules. Chemguy teaches how to name the single bond aliphatics and alkanes with proper prefixes. Although not very captivating, he explains chemistry concepts clearly. While this should not take the place of your lecture, it can be viewed as a review or homework.
Salman reviews the justifications for naming molecules according to their makeup. He gives a valuable list of traditional prefixes and shows multiple examples of naming alkanes.
Chemistry and earth science meet in a instructional activity on carbon dioxide emissions. After reading about atmospheric problems caused by using fossil fuels, science stars balance equations for the burning of different alkanes. They compute the number of moles of gasses emitted and consider the use of photovoltaics and other clean energy sources. Although it is only a paper and pencil assignment, it is well-written and pertinent when you want to open your chemists' eyes to the threat of climate change.
This learning exercise asks learners to work on alkane nomenclature. They name 2 straight-chain alkanes and answer 4 questions about branched-chain alkanes. In addition, class members name 5 branched-chain alkanes and draw the structures for 3 alkane compounds. This meant for advanced pupils.
In this alkanes worksheet, students complete a table with the chemical formula, the structural formula and the condensed formula of various alkanes given different numbers of carbon atoms. They answer three questions about valence electrons and Lewis dot formulas as well.
In this bonding worksheet, students write the chemical formula, the name of the alkane, the structural formula and the condensed formula given the number of carbon atoms in each alkane.
In this alkanes worksheet, students solve five problems including balancing equations, writing formulas, drawing isomers, drawing line structures and naming compounds.
In this chemistry worksheet, students name each of the branched alkanes presented on the sheet. Then they draw the structural formulas for the molecules.
In this alkanes worksheet, students name 12 molecules given the organic structure drawings including the carbon atoms. Students have to identify the name of the compound from the given structure.
In this alkanes worksheet, students use a data table to plot a graph of boiling point against number of carbon atoms. Students define cracking and double bond. This worksheet has 5 short answer questions.
Nine action-packed organic chemistry exercises are contained in this mini-unit on carbon containing compounds. Examples include constructing models of alkanes, producing aromatic esters, and preparing pigments for paint and dyes. Chemistry scholars learn to write molecular formulas and draw structures for carbon compounds. Because of the complexity of the activities and level of skills required, this would not be recommended for first-year chemistry classes. It is, however, a superior resource!
For advanced chemists, this instructional activity examines heat change during chemcial reactions. Alkanes are examined first. Learners calculate the energy released or needed during a reaction.
In this aliphatic worksheet, students are given eight hydrocarbon molecules. They determine if they are alkanes, alkenes or alkynes. They draw a diagram of each and indicate if they are saturated or unsaturated.
This instructional activity would provide a great assessment for teachers to test student knowledge. Students are asked to complete 3 charts which characterize types of chemical bonds such as alkanes, alkenes, or alkynes. They must also determine the name and structural formula of each bond.
In this organic and biochemical compounds learning exercise, students identify compounds as alkanes, alkenes or alcohols. They compare and contrast the similarities of each. This one-page learning exercise contains 6 problems.
Sal continues to work through examples of more complicated carbon chains in this final video in a series of five. He presents a complicated name and attempts to work through it logically and draw the structure. His humor makes these strategies fun and easy to watch.