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  2. Nylon rope trick - Wikipedia

    en.wikipedia.org/wiki/Nylon_Rope_Trick

    Acid Chloride Preparative Route for Nylon-6,10, which is often used in the nylon rope trick. The nylon rope trick is a scientific demonstration that illustrates some of the fundamental chemical principles of step-growth polymerization and provides students and other observers with a hands-on demonstration of the preparation of a synthetic polymer.

  3. List of unsolved problems in chemistry - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    This is a list of unsolved problems in chemistry. Problems in chemistry are considered unsolved when an expert in the field considers it unsolved or when several experts in the field disagree about a solution to a problem.

  4. Mamamoo - Wikipedia

    en.wikipedia.org/wiki/Mamamoo

    Mamamoo (Korean: 마마무; Japanese: ママム; commonly stylized in all caps) is a South Korean girl group formed and managed by RBW. The group is composed of four members: Solar , Moonbyul , Wheein , and Hwasa .

  5. List of songs written by Moonbyul - Wikipedia

    en.wikipedia.org/wiki/List_of_songs_written_by...

    Mamamoo "Just Believe In Love" Travel (Japan Edition) Yuki Kokubo, Lauren Kaori "A Memory For Life" (애써) WAW: Jeon Da-woon (RBW), Cocodooboopapa: Xydo (feat. Moonbyul) "Me Without You" (너 없는 난) Non-album single Coco Tofu Dad, Daddy, Xydo: Coco Tofu Dad, Xydo, Park Hyun: Mamamoo "Mumumumuch" (하늘 땅 바다만큼) I Say Mamamoo ...

  6. Aqueous solution - Wikipedia

    en.wikipedia.org/wiki/Aqueous_solution

    The first solvation shell of a sodium ion dissolved in water. An aqueous solution is a solution in which the solvent is water. It is mostly shown in chemical equations by appending (aq) to the relevant chemical formula. For example, a solution of table salt, also known as sodium chloride (NaCl), in water would be represented as Na + (aq) + Cl ...

  7. Elephant's toothpaste - Wikipedia

    en.wikipedia.org/wiki/Elephant's_toothpaste

    Elephant toothpaste reaction Two people watching the reaction of Elephant's toothpaste. Elephant's toothpaste is a foamy substance caused by the quick decomposition of hydrogen peroxide (H 2 O 2) using potassium iodide (KI) or yeast and warm water as a catalyst. [1]

  8. Freezing-point depression - Wikipedia

    en.wikipedia.org/wiki/Freezing-point_depression

    In the laboratory, lauric acid may be used to investigate the molar mass of an unknown substance via the freezing-point depression. The choice of lauric acid is convenient because the melting point of the pure compound is relatively high (43.8 °C). Its cryoscopic constant is 3.9 °C·kg/mol. By melting lauric acid with the unknown substance ...

  9. Solution (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Solution_(chemistry)

    Making a saline water solution by dissolving table salt in water.The salt is the solute and the water the solvent. In chemistry, a solution is defined by IUPAC as "A liquid or solid phase containing more than one substance, when for convenience one (or more) substance, which is called the solvent, is treated differently from the other substances, which are called solutes.