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, 2022
- 1 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...
2,088 views1 comment
JH@Quelpr
- Jul 2, 2021
- 1 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...
1,337 views1 comment
JH@Quelpr
- Jan 2, 2021
- 4 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..
3,062 views0 comments
JH@Quelpr
- Nov 21, 2020
- 3 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...
319 views0 comments
JH@Quelpr
- Nov 17, 2020
- 7 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, 2020
- 4 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...
955 views0 comments
JH@Quelpr
- Sep 27, 2020
- 7 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...
1,208 views0 comments
JH@Quelpr
- Sep 12, 2020
- 2 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, 2020
- 2 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, 2020
- 1 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...
86 views0 comments
JH@Quelpr
- Aug 22, 2020
- 3 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, 2020
- 1 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, 2020
- 4 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...
230 views0 comments
JH@Quelpr
- Aug 6, 2020
- 2 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, 2020
- 4 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...
436 views0 comments