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FranThe radius ratio rule provides guidelines on the coordination numbers and structures of ionic solids based on the sizes of cations and anions. For example, in the case of octahedral coordination, a ratio of r+/r- between 0.414 and 0.732 signifies stable structures. These rules help predict the coordination geometry and packing arrangement of ions in ionic solids.
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Do gases have the same dissolving rules like solid?
Gases dissolve in liquids based on Henry's law, which states that the solubility of a gas in a liquid is directly proportional to the partial pressure of that gas above the liquid. This is different from the dissolution of solids in liquids, which is typically governed by factors like temperature, pressure, and the nature of the solute and solvent.
What is Handling solids for laboratory?
Handling solids in a laboratory involves safely working with solid materials such as powders, crystals, or samples. This includes using proper personal protective equipment, following specific procedures for weighing, measuring, and transferring solids, and ensuring proper storage and disposal of solid waste. It is important to minimize dust generation, prevent contamination, and adhere to good laboratory practices to maintain a safe working environment.
How did Watson and Crick's DNA structure supported Chargaff's rules?
Watson and Crick's DNA structure supported Chargaff's rules by showing that the base pairs are complementary and form specific hydrogen bonds (A with T and G with C), consistent with Chargaff's observation. This structure provided a molecular explanation for Chargaff's rule that the amount of adenine equals the amount of thymine and the amount of guanine equals the amount of cytosine in DNA.
How can the solubility rules help predict the product of a reaction?
double replacement
What is the key component underlying bureaucracies?
The key component underlying bureaucracies is a hierarchical structure with clear lines of authority and responsibility. This structure helps to establish rules, procedures, and standard operating practices that govern the organization's operations.
