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15 Cards in this Set
- Front
- Back
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Ionic compound
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In chemistry, an ionic compound is a chemical compound in which ions are held together in a structure by electrostatic forces termed ionic bonds. The positively charged ions are called cations and the negatively charged ions are called anions.
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Covalent bond
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A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms
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MgO
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Magnesium Oxide
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NaNO3
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Sodium nitrate
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N2O3
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Dinitrogen tri oxide
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Physical change
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Physical changes occur when objects or substances undergo a change that does not change their chemical composition
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chemical change
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occur when a substance combines with another to form a new substance
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4 signs of a chemical change
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Color change,solid,heat,light
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Synthesis
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Combination or composition
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Decomposition
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Organic substance breaks down turns to bones
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single replacement
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One ion or element moves out
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double replacement
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double replacement reaction is a chemical reaction where two reactant ionic compounds exchange ions to form two new product compounds with the same ions.
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balancing reactions
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Number of atoms of elements are conserved. In other words, sum of the atoms in reactants part is equal to sum of the atoms of products.
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exothermic process
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thermodynamics, the term exothermic process (exo- : "outside") describes a process or reaction that releases energy from the system, usually in the form of heat, but also in a form of light (e.g. a spark, flame, or flash), electricity (e.g. a battery), or sound (e.g. explosion heard when burning hydrogen). Its
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Endothermic process
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In thermodynamics, the term endothermic process describes a process or reaction in which the system absorbs energy from its surroundings in the form of (usually, but not always) heat.
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