Science
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| what is a substance in which the atoms of two or more elements are combined in a fixed proportion | compound
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| substances that prevent certain chemical reactions are called | inhibitors
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| a substance that speeds up a chemical reaction without undergoing a permanent change itself is an what? | catalyst
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| a chemical reaction in which two or more substance combine to form another substance is a what kind of reaction? | synthesis
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| the breaking down of a substance into tow or more substances is a what? | decomposition
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| according to the law of conservation of mass, how does the mass of the products in a chemical equation compare with the mass of the reactants? | the masses are equal
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| what is an insoluble solid that forms as the result of a double displacement reaction called | a precipitate
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| what is a mixture that has the same composition, color, and density throughout? | a solution
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| adding more solute to a solvent does what to the solvent? | raises its boiling point
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| what would increase the solubility of a gas in a liquid | increase the pressure. decrease the temperature
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| a dilute solution has a ....... of solute in the solvent | small amount
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| one commonly used precise way to describe concentrations of solutions is to state | the percentage by volume of the solute
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| the maximum amount of a solute that can be dissolved in a given amount of solvent is its | solubility
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| the type of radioactive particle that can be stopped by a sheet of paper is the | alpha particle
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| the most penetrating type of radiation is the | gamma rays
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| a helium nucleus with two protons and two neutrons is called a | alpha particle
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| protons in the nucleus are attracted to each other by | the strong force
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| the process of nuclear decay is known as | radioactivity
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| negatively charged particles emitted from a nucleus at a high speed are | beta particles
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| the process by which nuclei haiving low masses are united to form nuclei having low masses are united to form nuclei with a larger mass is | nuclear fusion
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| both a fusion reaction a fission reaction do what when their together? | produce energy
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Created by:
Christy McPherson
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