Answers about Chemistry > 자유게시판

Polar areas typically do not have a thermocline, which is a distinct layer in a body of water where temperature changes rapidly with depth. In polar regions, th
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Chemistry









What Is the chemical and mechanical breakdown of Rock?


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The breakdown of rock occurs through chemical and mechanical weathering processes. Mechanical weathering involves physical forces, such as freeze-thaw cycles, a
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Chemistry



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What is the pH of 0.05 M of HCl?


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The pH of a 0.05 M solution of hydrochloric acid (HCl) can be calculated using the formula pH = -log[H⁺]. Since HCl is a strong acid that dissociates completely
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Atoms and Atomic Structure



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What is the force called that pushes apart two electrons or two protons in an atom?


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The force that pushes apart two electrons or two protons in an atom is called the electrostatic force, specifically the repulsive force due to like charges. Acc
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Chemistry









What substance cant be separated by filtration?


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A solution, such as saltwater, cannot be separated by filtration because the solute (salt) is dissolved at the molecular level in the solvent (water). Filtratio
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Chemistry









How do you calculate empirical formular mass?


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To calculate the empirical formula mass, first determine the molar mass of each element in the empirical formula by using the periodic table. Multiply the atomi
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Chemistry









What is a financial stability?


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Financial stability refers to a condition in which the financial system operates smoothly, allowing institutions to manage risks effectively, maintain liquidity
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Chemistry









What happens when lipids are put in organic solvent?


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When lipids are placed in an organic solvent, they typically dissolve due to the nonpolar nature of both lipids and many organic solvents. This solubility occur
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Chemistry









What difference in properties between two liquids allows distillation to be done?


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Distillation relies on the difference in boiling points between two liquids. When a mixture is heated, the liquid with the lower boiling point vaporizes first,
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Chemistry









What would be the safest thing to nutrilize excess acid in the stomach?


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The safest way to neutralize excess stomach acid is by using over-the-counter antacids, such as those containing magnesium hydroxide, aluminum hydroxide, or cal
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Chemistry









What are some examples promise betweek peopele?


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Promises between people can take various forms, such as a commitment to support a friend during tough times, a vow to maintain honesty in a relationship, or an
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Chemistry









What made flask ill at ease after he became an office?


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Flask felt ill at ease after becoming an officer due to the heavy burden of responsibility that came with his new position. The constant pressure to make critic
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Chemistry









Why is the mass of a rusted nail greater than a nail before it it rusted?


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The mass of a rusted nail is greater than that of an unrusted nail because rusting involves a chemical reaction between iron and oxygen in the presence of moist
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Chemistry









What is kcio3 plus kci-----o2 balanced?


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The balanced equation for the reaction between potassium chlorate (KClO3) and potassium chloride (KCl) in the presence of oxygen (O2) typically represents a dec
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Chemistry









Is universal class good?


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The concept of a universal class can be beneficial as it promotes inclusivity and accessibility in education, allowing students of diverse backgrounds and abili
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Chemistry









Why is gasoline unsustainable?


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Gasoline is considered unsustainable primarily due to its reliance on fossil fuels, which are finite resources that contribute to environmental degradation and
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Chemistry









What spheres is composed exclusively of water?


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The spheres composed exclusively of water are known as the hydrosphere. This includes all of Earth's water bodies, such as oceans, rivers, lakes, and glaciers,
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Chemistry









WhatCan elements change shape without breaking?


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Certain elements can change shape without breaking due to their malleability and ductility. For example, metals like gold, silver, and copper can be hammered in
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Chemistry









A gas of 190 mL at a pressure of 74 ATM can be expected to change its pressure when its volume changes to 30.0 mL. Express its new pressure in units of atmospheres. ATM?


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To find the new pressure of the gas when its volume changes, we can use Boyle's Law, which states that ( P_1 \times V_1 = P_2 \times V_2 ). Given ( P_1 = 74 ) A
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Chemistry









Why dies metal casting make use if the different characteristics of liquids and solids?


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Metal casting leverages the distinct characteristics of liquids and solids by utilizing the fluidity of molten metal to fill molds, allowing for complex shapes
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Chemistry









How do you change the nature of reactants?


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To change the nature of reactants, you can alter their chemical structure through processes such as chemical reactions, where reactants interact to form new pro
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Chemistry









What is the rate constant of a reaction if rate .2?


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To determine the rate constant of a reaction, you need to know the rate equation and the concentrations of the reactants involved. The rate constant (k) can be
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Chemistry



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What mass of F2 is needed to produce 120g of PF3 if the reaction is 78.1 yield?


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To find the mass of F2 needed to produce 120 g of PF3 at a yield of 78.1%, we first calculate the theoretical mass of PF3 that would require 100% yield. The mol
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Chemistry









What is permeability effect on concentration?


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Permeability refers to the ability of a material to allow fluids or gases to pass through it. In the context of concentration, higher permeability typically fac
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Chemistry









According to Le châteliers principle what would happen to a system at equilibrium if more of one compound in a reaction were added?


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According to Le Chatelier's principle, if more of one compound in a reaction at equilibrium is added, the system will shift in the direction that counteracts th
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