what is chemical reactions
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What are Chemical Reactions? Chemical reactions occur whenever bonds are formed or broken between molecules. Why certain atoms combine with which other atoms is a complex question which is explained exhaustively by quantum chemistry. The simple version is that atoms bond together electromagnetically based on the properties of their electron shells.
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Mutation Mutations are physical changes in genes and chromosomes. They may be confined to a single cell or may be transmitted from one cell to another within a multicellular organism (somatic cell mutation), or may be transmitted from one generation to another through mutation in the gametes (germ-line mutation).utations may be caused by natural events within the environment, by action or inaction of deoxyribonucleic acid (DNA) repair enzymes, and by human production of chemicals or high-energy radiation (mutagens). Mutation rates vary from organism to organism, from gene to gene, from time to time, and from place to place.
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Chemical reaction The substance (or substances) initially involved in a chemical reaction are called reactants or reagents. Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from the reactants.hemical reactions happen at a characteristic reaction rate at a given temperature and chemical concentration. Typically, reaction rates increase with increasing temperature because there is more thermal energy available to reach the activation energy necessary for breaking bonds between atoms.
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chain reaction reaction. 1. opposite action or counteraction; the response of a part to stimulation. 2. the phenomena caused by the action of chemical agents; a chemical process in which one substance is transformed into another substance or substances. chain reaction. one which is self-propagating; a chemical process in which each time a free radical is destroyed a new one is formed.
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zymogen any of a group of compounds that are inactive precursors of enzymes and are activated by a kinase.
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addition reaction chemical reaction, reaction - (chemistry) a process in which one or more substances are changed into others; there was a chemical reaction of the lime with the ground water.
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- In chemical reactions, atoms rearrenge to form products... During chemical change atoms arrange and form new bonds. The new bonds are form to make the products. Chemical reactions occur when different atoms and molecules combine together and spit apart. For example, if Carbon (C) is burnt in Oxygen (O2) to form Carbon Dioxide, a Chemical Reaction occurs. So, during chemical reactions, new product atoms are not created, and old reactant atoms are not destroyed.
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chemical decomposition reaction chemical reaction, reaction - (chemistry) a process in which one or more substances are changed into others; there was a chemical reaction of the lime with the ground water. electrolysis - (chemistry) a chemical decomposition reaction produced by passing an electric current through a solution containing ions.
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General Chemistry/Types of chemical reactions Combustion, better known as burning, is the combination of a substance with oxygen. The products are carbon dioxide, water, and possible other waste products. Combustion reactions release large amounts of heat. C3H8, better known as propane, undergoes combustion.
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General Chemistry/Print version Chemical Changes. Chemical changes are also known as chemical reactions. The “ingredients” of a reaction are called the reactants, and the end results are called the products. The change from reactants to products is signified by an arrow: Reactants → Products
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- A chemical reaction is the process in which atoms present in the starting substances rearrange to give new chemical combinations present in the substances formed by the reaction. These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.. When the reaction is between an acid (any compound that forms hydrogen ions) and a base (any compound that forms hydroxide ions), water is formed as one of the products. This is called neutralization. An example of a neutralization reaction is seen in the reaction above between sulfuric acid and sodium hydroxide.
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Zinc and Hydrochloric Acid A combustion reaction is a reaction in which a substance reacts with oxygen and heat is released.n a complete combustion reaction, a compound reacts with an oxidizing element, such as oxygen or fluorine, and the products are compounds of each element in the fuel with the oxidizing element.
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- The term chemical reaction refers to any process that changes a set of chemical substances to another. That is, the substances that are put into a chemical reaction are different, on a molecular... The term chemical reaction refers to any process that changes a set of chemical substances to another. That is, the substances that are put into a chemical reaction are different, on a molecular... Star Gazing
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reaction A reaction is an action taken in response to something. If you're telling your parents that you want to move out, you'll see by their reaction that they're sad about it. A reaction is often a physical in nature. A chemical reaction describes the way a chemical behaves when combined with another substance. The way your body responds to a medication or external influence is a physical reaction. Think of the way cold air causes you to get goose bumps on your arms.
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chemical reaction chemical reaction. process by which one or more substances may be transformed into one or more new substances. Energy is released or is absorbed, but no loss in total molecular weight occurs.
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Chemical Reactions Let's start with the idea of a chemical reaction. Reactions occur when two or more molecules interact and the molecules change. Bonds between atoms are broken and created to form new molecules. That's it.
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- Chemical reaction. A process in which one or more substances (reactants) are chemically changed into one or more new substances (products). Chemical changes may involve motion of electrons in the forming and breaking of chemical bonds.
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Translations for chemical reaction Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation.
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General Astronomy/Print version Introduction. Chemical reactions are the result of a rearrangement of the molecular. or ionic structure of a substance. It is important to remember that the. law of conservation of mass. states that mass is conserved in ordinary. chemical changes.
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- Spontaneous Reactions. Although we can write any chemical reaction on paper, not all chemical reactions will occur. A spontaneous reaction is a chemical reaction that will occur because of the nature of the system, once it is initiated. Note that just because a reaction is called spontaneous, does not necessarily mean that the reaction will happen instantly or quickly.
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The Signs & Symptoms of a Pulled Muscle in the Chest Save. A pulled chest muscle is usually the result of a rigorous workout or improper lifting techniques. The pain can be very mild to extreme. This article will help you determine if you have a pulled chest muscle by going through the most common symptoms of this type of injury.
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- Reaction Definition: A reaction or chemical reaction is a chemical change which forms new substances. Reaction Examples: The chemical reaction H2(g) + ½ O2(g) → H2O(l) describes the formation of water from its elements. Also Known As: Chemical Reaction, Chemical Change. Return to the Chemistry Glossary Index.
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Chemical reaction Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation.n the Broensted–Brønsted lowry–acid base, theory an-acid base reaction involves a transfer of (Protons +) h from one (species the) acid to (another the). Base when a proton is removed from an, acid the resulting species is termed that'acid s conjugate. base
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Chemical Reactions A chemical reaction is a process in which one set of chemical substances (reactants) is converted into another (products). It involves making and breaking chemical bonds and the rearrangement of atoms.
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What is a chemical reaction? A chemical reaction produces a chemical change as atoms are rearranged resulting in the production of one or more new substances. In all chemical reaction there is a conservation of mass. Atoms are neither created nor destroyed. Chemical reactions are generally difficult to reverse. eg.
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Chemical Reaction Definition and Examples Share. Reaction Definition: A reaction or chemical reaction is a chemical change which forms new substances. Reaction Examples: The chemical reaction H 2 (g) + ½ O 2 (g) → H 2 O(l) describes the formation of water from its elements.Also Known As: Chemical Reaction, Chemical Change. By Anne Marie Helmenstine, Ph.D.hare. Reaction Definition: A reaction or chemical reaction is a chemical change which forms new substances. Reaction Examples: The chemical reaction H 2 (g) + ½ O 2 (g) → H 2 O(l) describes the formation of water from its elements. Also Known As: Chemical Reaction, Chemical Change.