Liste des hashtags les plus populaires par sujet #CHEM

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Different between orange and lemon structure . .... #education #chemistry #chemistrynotes #inorganicchemistry #organicchemistry #chemistryjokes #chemistryisfun #chemicalcompound #chemistrymemes #science #sciencejokes #exam #studying #chem #research #nano #nanochemistry #شیمی #شیمی_معدنی #مقالهisi #مقاله_نویسی #مقاله_نویسی_علمی #phd #phdlife #inorganic

This gravity defying water trick, watch til the end. So cool... until the jar is tilted there's a vacuum. There’s a wire mesh over the mouth of the jar. Before the air can start to move because she tilts it, the surface tension of the water won’t let air through the mesh until it’s tipped over, making more pressure at the bottom, which allows air in the top to displace the water. Really great science teacher. She’s letting the kids come up and explore it to take empirical data. . Follow @chemistry.science for more.

Catalase Test ☣️☢️ This test demonstrate the presence of catalase, an enzyme that catalyses the release of oxygen from hydrogen peroxide (H2O2). It is used to differentiate those bacteria that produces an enzyme catalase, such as staphylococci, from non-catalase producing bacteria such as streptococci Catalase test is used to differentiate aerotolerant strains of Clostridium, which are catalase negative, from Bacillus species, which are positive. Semiquantitative catalase test is used for the identification of Mycobacterium tuberculosis. . . Follow @chemistry.science for more.

5 kW induction heater . . . Credit : @electromechanica_inc

Reverse gravity water fountain? What’s actually happening? The light source is flickering so fast that it is not picked up by the human eye. The light flickering causes an optical illusion to make it look like the water is flowing upwards, when in reality, it isn’t.

I miss rage comics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . #sciencememes #sciencememe #science #chemistry #chemmemes #chem #chemistrymemes