Stack #33417
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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| balancing a chemical equation so that the same number of atoms of each elment is found in both the reactants and the products is an illustration of | the law of conservation of mass
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| what is the chemical formula for calcium chloride | CaC1
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| which type of reaction do ions in two compounds switch places | double-replacement
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| what is an example of a the use of activation energy | holding a lit match to paper
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| enzymes in your body act as catalysts. thus,the role of enzymes is to | increase the rate of chemical reactions
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| what is an example of a diatomic element | O2
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| what is an example of a single-replacement reaction | Fe+2HCI=FeC12+H2
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| what is not a chemical reaction | ice melting
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| how many atoms aare represented in the formula CaCo3 | five(5)
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| what usually increases the rate of a reaction | grinding a solid reactant into a powder
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| what does a "catalyst" do | lowers the activation energy of a reaction
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| when the substances that make up baking powder are mixed with water,carbon dioxide gas is formed. this is an exaple of | a chemical reaction
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| for a chemical reaction to occur | chemical bonds must break, atoms must rearrange, new bonds must form
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| a shorthand method of identifying an element is a chemical | symbol
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| a shorthand notation for a compound or a diatomic element using chemical symbols and numbers is a chemical | formula
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| a (?) indicates the chemical make up of a substance by showing how many of each kind of atom is present in a molecule | chemical formula
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| what is the formula for carbon dioxide | CO2
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| what is the formula for dinitrogen monoxide | N2O
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| what is the proper order for the first five prefixes used in chemical nemes | mono-,di-,tri-,tetre-,penta-
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| whats happens in a chemical equation | reactant appear before the arrow,products appear after the arrow, plus sign seperates the for mulas of two or more reactants or products
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Created by:
shy
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