Quelpr CAPE Chemistry Unit 2 Full Syllabus Review
Hello there all! It has been a while since my last update here... but I come bearing gifts! Or, one large gift...
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JH@Quelpr
May 25, 20221 min
CAPE Unit 1 Chemistry Paper 2 2022 (A Useful Paper for Practice)
Hey Chemistry warriors! Here's a quick support paper for those of you doing Unit 1 this year. Lots of useful questions covering the...
2,885 views1 comment
JH@Quelpr
Jul 2, 20211 min
CSEC Chemistry: Complete Syllabus Review
Hello Chemistry students! This material was covered in Quelpr's CSEC Chemistry on June 26, 2021, however the past paper questions and...
1,970 views1 comment
JH@Quelpr
Jan 2, 20214 min
CSEC Chemistry: Qualitative Analysis
Qualitative Analysis is a fancy name for identifying the components of a compound or mixture using a series of tests. We use the qualities..
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JH@Quelpr
Nov 21, 20203 min
CSEC Chemistry: Extraction of Metals (Iron)
If you read our last post, you already know that metals are found naturally as ores, ionic compounds in the earth's crust contaminated by...
470 views0 comments
JH@Quelpr
Nov 17, 20207 min
CSEC Chemistry: Extraction of Metals (Using Electrolysis)
You see, metals don’t just exist in nature in their pure forms- the earth’s crust isn’t some kind of grocery store we can go to and pick...
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JH@Quelpr
Oct 14, 20204 min
CSEC Chemistry: Reactivity of Metals
Many metals exhibit these chemical properties, but there are differences in the reactivity of the metals that causes some metals to react...
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JH@Quelpr
Sep 27, 20207 min
CSEC Chemistry: Volumetric Analysis
Most of the time in chemistry, we're searching for information we don't know. For example, if we want to know if chlorine gas is an...
1,880 views0 comments
JH@Quelpr
Sep 12, 20202 min
CSEC Chemistry: Polyamides and Proteins
Polyamides (or polypeptides) are synthetic polymers composed of several amide (also called peptide) groups. The amide group/linkage consists
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JH@Quelpr
Sep 8, 20202 min
CSEC Chemistry: Polymers
Polymers are long chain-like molecules which are formed from several repeating smaller molecules known as monomers. Monomers are those small
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JH@Quelpr
Aug 30, 20201 min
CSEC Chemistry: Hydrolysis of Esters
In condensation reactions between an alkanol and an alkanoic acid, a water molecule is removed to form an ester. So, to break the ester...
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JH@Quelpr
Aug 22, 20203 min
CSEC Chemistry: Alcohols/Alkanols (Reactions and Uses)
The alkanols (like ethanol and propanol) all contain the hydroxyl functional group (-OH), and thus, undergo a number of similar reactions.
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JH@Quelpr
Aug 18, 20201 min
CSEC Chemistry: Differentiating between Alkanes and Alkenes
As we discussed in a previous post, alkanes are saturated compounds because they have the maximum number of hydrogen compounds in their...
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JH@Quelpr
Aug 13, 20204 min
CSEC Chemistry: Reactions of Alkanes and Alkenes
By now, you have already become familiar with the general formulae of alkanes (CnH2n+2) and alkenes (CnH2n). Alkanes are saturated...
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JH@Quelpr
Aug 6, 20202 min
CSEC Chemistry: Structural Isomerism
Previously, we discussed the naming of compounds based on their fully displayed structural formulae. We do this because there are...
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JH@Quelpr
Jul 25, 20204 min
CSEC Chemistry: Naming Organic Compounds (and Functional Groups)
All the members of a particular homologous series share similar chemical properties (as discusses in a previous post. This is because...
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JH@Quelpr
Jun 27, 20202 min
CSEC Chemistry: Types of Organic Formulae and Homologous Series
Homologous series were mentioned above, but you may not be familiar with them. These are groups of organic compounds which share similar...
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JH@Quelpr
Jun 23, 20202 min
CSEC Chemistry: Carbon's Bonding Properties (Organic Chemistry)
An organic compound is one of a category of millions of compounds containing carbon atoms bonded to hydrogen in addition to several other...
142 views0 comments
JH@Quelpr
Jun 12, 20202 min
CSEC Chemistry: Energetics
Chemical reactions involve the breaking of old bonds and the formation of new bonds. These changes experienced in materials and chemical...
1,219 views0 comments
JH@Quelpr
Jun 11, 20204 min
CSEC Chemistry: Rates of Reaction
The rate at which something occurs is how quickly it happens over time. As you know, in chemical reactions, reactants are converted into...
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