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Science

QuestionAnswer
Binary compounds Compounds made of only two elements.
Polyatomic ions A covalently bonded group of atoms that has a positive or negative charge and acts as a unit.
Mole An amount of a substance that. contains approximately 6.02 x 10(23) particles of the substance.
Exothermic reaction A chemical reaction that releases energy to its surroundings.
Endothermic reaction A chemical reaction that absorbs energy from its surroundings.
Why are moles used? So that large amounts of a substance can be talked about with still knowing the amount of molecules.
When hydrocarbon butane undergoes combustion, what is resulted? carbon dioxide, H2O, and heat
Synthesis reaction A chemical reaction in which two or more substances react to form a single compound.
Decomposition reaction A chemical reaction in which a compound breaks down into two or more simpler substances.
Single replacement reaction A chemical reaction in which one element takes the place of another element in a compound.
Double replacement reaction A chemical reaction in which two compounds exchange positive ions and form new compounds.
Combustion reaction A chemical reaction in which a substance reacts rapidly with oxygen, often producing heat and light.
Covalent bond A chemical bond in which two atoms share one or more pairs of valence electrons
Ionic bond A chemical bond formed between oppositely charged ions
Ion An atom or a group of atoms that has a positive or negative charge
Created by: watsonfamily
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