How are ions formed? What do you mean by peptization? What is the cause of peptization? What are the characteristics of water? Is it polar? 1) What causes some molecules to rotate light? Explain in your own words. 2) Discuss your observations in the polarimetry part of the lab. How ...
Why are polar molecules not able to pass through the cell membrane? What occurs during hyperpolarization of a neuron membrane? How do lipid soluble molecules cross the cell membrane? What are the little hairs on a cell membrane called? Which type of molecule moves across a cell membrane most ...
2. 测 Zeta 电位为什么不能稀释? In aqueous media, Zeta potential is typically generated as the ions on the particle surface dissociate, leaving a net electric charge near the surface surrounded by a cloud of counter-ions. Various types of ions can diffuse in and out through the slipping plane...
Chemistry vocabulary and Chemistry glossary are different from the normal vocabulary. It is a branch of natural science that examines the building blocks of matter, including the atoms, molecules, and ions that make up compounds and their composition, structure, behaviour, and changes that occur whe...
In fact, there still is, as Mars is one of the planets with polar ice caps, which are largely composed of frozen water. However, it has long been believed that liquid water vanished from Mars at least two billion years ago. A recent study on the Lafayette Meteorite has thrown this ...
What is the difference between atoms and ions; and covalent compounds and ionic compounds? Between H2O and CH4, identify which compound has polar covalent bonds and which has nonpolar covalent bonds. What is the difference between covalent bonds and ionic bonds? Which of the following molecules ha...
There are many practical applications of ecology in conservation biology, wetland management, natural resource management (agriculture, forestry, fisheries), city planning (urban ecology), community health, economics, basic & applied science and it provides a conceptual framework for understanding and rese...
What can happen if there are changes in solute concentration in a cell? A. Water can go into a cell B. Water can go out of a cell C. Ions can go into a cell D. Ions can go out of a cell E. All are possible (a) What role does solute concentration play in o...
ions and polar molecules are separated based on charge relative to an ion exchanger. It is often used to separate proteins, nucleotides and amino acids, for water analysis, and for detecting anions in blood samples. The solution of the mixture in the solvent is known as the mobile phase and...
The reason why the NH2 column is selected as the analytical column is because trigonelline is an internal salt, extremely polar, and retains very little on the C18 column. It is not easy to separate from impurities when analyzing trigonelline. Therefore, Using an NH2 column with a polar statio...