Chemistry Articles - Page 4 — Knoji
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the on-going debate as to the safety of phthalates and parabens in various products
Published by Marie A. 87 months ago in Chemistry | +4 votes | 0 comments
Why ice melts and why water can turn to steam? This article answers your question.
Published by Cynthia Pinga 88 months ago in Chemistry | +3 votes | 4 comments
Red-ox titration is a kind of titration based on oxidation-reduction reactions. It is a method of volumetric analysis wherein the sought-for substance is made to react by a titration technique with a measurable volume of a standard solution of known concentration. In Oxidation-Reduction (Redox) method of titration, a reducing substance is titrated with a standard solution of an oxidizing agent, or an ...
Published by Nida Cabauatan Abarca 88 months ago in Chemistry | +2 votes | 0 comments
Explains the arbitrary and quantitative methods of expressing concentr ation of solutions.
Published by Nida Cabauatan Abarca 88 months ago in Chemistry | +3 votes | 0 comments
This tells you how to build a silicate garden, and the chemicals used in its chemistry.
Published by John Carter 89 months ago in Chemistry | +2 votes | 0 comments
How a simple chemical trick can lead to some very complex studies. This is based on the reaction of certain heavy metal salts with alkali metal silicates
Published by John Carter 89 months ago in Chemistry | +0 votes | 0 comments
This illustrates the method used in dry cleaning and cloth identification. The advantage of dry cleaning in soapy water is that the garments do not shrink or change their shape, and colors are not affected. This is particularly important with woolen garments.
Published by Nida Cabauatan Abarca 90 months ago in Chemistry | +0 votes | 0 comments
An excerpt about an example of redox titration using sodium thiosulfate report.
Published by Nida Cabauatan Abarca 90 months ago in Chemistry | +1 votes | 0 comments
The blowpipe has been used since the days of the ancient Egyptains to perform analysis in chemistry or minerals until 1860. It was replaced with the Bunsen burner and spectrograph in modern analysis work.
Published by John Carter 91 months ago in Chemistry | +2 votes | 1 comments
It isn't often when you can pinpoint the beginning of anything, but chemistry was an invention of the ancient Eqyptians. With a handfull of natural chemicals both organic from plants and inorganic from minerals the people of the land of Khem passed down the science of chemistry
Published by John Carter 91 months ago in Chemistry | +3 votes | 1 comments
Many a person loves a good chocolate fix, but few know anything about how the chocolatey treat in their hand came to be made. There is a standard process that most basic forms of chocolate go through in order to make it from cacao bean to candy bar.
Published by Caitlynn Lowe 91 months ago in Chemistry | +14 votes | 5 comments
Here are 5 types of chemical reactions, and what to expect the products to be.
Published by Illustrious 93 months ago in Chemistry | +2 votes | 0 comments
Not the song by legendary Hawaiian crooner the late Don Ho, but tiny bubbles in an effervescent beverage. There is more to these tiny bubbles than just ‘dissolved gases’ in the liquid. And as the song goes, yes, '... they make me happy/make me feel fine.'
Published by thestickman 94 months ago in Chemistry | +4 votes | 4 comments
We have been trying to grow crystals that we bought in a commercially-available crystal growing kit. So far the results have been disappointing. The image on the box does not really resemble the results we are seeing.
Published by thestickman 95 months ago in Chemistry | +5 votes | 2 comments
How to build a simple Smoke Bomb using basic kitchen and garden shop chemicals...
Published by thestickman 95 months ago in Chemistry | +3 votes | 3 comments
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