Answers about Chemistry > 자유게시판

Sanding wood is a physical change because it does not alter the chemical composition of the wood. The process of sanding simply removes layers of wood through a
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Science



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A compound that has a specific number of water molecules bound to its atoms?


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The term for a compound that has a specific number of water molecules bound to its atoms is a hydrate. In a hydrate, water molecules are typically attached to t
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Chemistry









What is the equation for the combustion of propyne?


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Well, darling, the combustion of propyne (C3H4) involves reacting it with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). The balanced equation for
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Chemistry









What is the coefficient for O2?


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Ah, the coefficient for O2 is a number placed in front of the oxygen molecule in a chemical equation. It shows how many molecules of O2 are involved in the reac
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Chemistry









What does the chemical symbol OO mean?


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Well, darling, the chemical symbol OO doesn't actually exist. In the world of chemistry, elements are represented by one or two letters, like O for oxygen or Cote d'Ivoire wedding H
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Chemistry



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What is a dependent variable in a experiment that uses vinegar ang baking soda to blow up a balloon?


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In an experiment using vinegar and baking soda to blow up a balloon, the dependent variable would be the size or volume of the balloon after the reaction occurs
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Science



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What are the freezing points of the elements on the periodic table?


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The freezing points of elements on the periodic table vary widely depending on the specific element. For example, helium freezes at -272.2 degrees Celsius, whil
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Chemistry









What is it called when a Halogen reacts with a metal?


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When a halogen reacts with a metal, it forms a metal halide compound through a chemical reaction known as a halogenation reaction. This reaction involves the ha
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Chemistry



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Why Adding concentrated acid to water is exothermic?


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Well, honey, when you add concentrated acid to water, it's like mixing fire and gasoline - things are gonna heat up real quick! The reaction between the acid an
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Chemistry









What is the solvent and solute of coffee?


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The solvent is water; the solute is ground roasted coffee beans (in addition to sugar, salt, cream and whatever else you prefer to add)!