Chemical Reactions Test
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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| show | combustion
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| show | the production of one or more new substances
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| show | a chemical reaction
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| show | energy
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| show | formula
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| show | a double replacement reaction
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| show | a synthesis reaction and a decomposition reaction
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| show | inhibitor
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| show | for reactions in both open and closed systems
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| In what way can a fire be brought under control? | show 🗑
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| show | matter can enter from or escape to the surroundings
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| The number placed below an element's symbol in a chemical formula is called a... | show 🗑
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| show | enzymes
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| show | fire prevention
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| The best way to put out a small kitchen fire is to... | show 🗑
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| show | 2Fe2O3 + 3C ---> 4Fe + 3CO2
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| A chemical equation that shows the same number of each kind of atom on both sides of the equation is said to be... | show 🗑
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| show | chemical equation
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| show | 2Na + O2 ---> Na2O
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| In a chemical equation, numbers often appear in front of a chemical formula. These numbers tell you the... | show 🗑
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| show | matter is not created or destroyed
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| The minimum amount of energy that has to be added to start a reaction is the... | show 🗑
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| Anything that has mass and takes up space is considered... | show 🗑
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| A bottle of hydrogen peroxide that eventually turns into a bottle of water and oxygen gas is an example of a... | show 🗑
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| show | The reaction is a physical change
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| show | adding a catalyst
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| Chemistry is... | show 🗑
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| A chemical reaction that absorbs energy in the form of heat is described as... | show 🗑
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| show | Heat the reaction flask on a hot plate
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| show | reactants
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| The rate of a chemical reaction is _________ of temperature. | show 🗑
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| show | properties of matter
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| show | Synthesis
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| A change that produces a new substance is a... | show 🗑
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| show | oxygen
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| show | chemical bonds
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| show | cigarettes
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| show | endothermic
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| The materials present at the beginning of a chemical reaction are called the _________. | show 🗑
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| show | cools
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| In a chemical equation, the substances written on the right side of the arrow are called _________. | show 🗑
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| In a chemical equation, a ________ tells you how many atoms or molecules of a reactant or a product take part in a reaction. | show 🗑
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| show | activation energy
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| show | energy
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| The process of solid ice changing into liquid water is a ________ change. | show 🗑
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| show | inhibitor
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| The ________ is the amount of one material present in a given volume of another material. | show 🗑
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| show | Chemical
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| A chemical reaction that releases energy in the form of heat is an ________ reaction. | show 🗑
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| show | fire extinguisher
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| The principle of ______________ states that during a chemical reaction, matter is not created or destroyed | show 🗑
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| A burning match is an example of an ____________ where matter can enter from or escape to the surroundings. | show 🗑
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| A wet log will not burn easily because a large amount of _________ must be added to the log to evaporate the water. | show 🗑
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| show | chemical
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| show | replacement
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| show | chemical
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| In a __________ reaction, the products are simpler substances than the reactant. | show 🗑
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| The ______________ of a compound shows the ratio of elements present in the compound. | show 🗑
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| A precipitate is a _________ that forms from solution during a chemical reaction. | show 🗑
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| show | chemical equation
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| energy needed to start a chemical reaction | show 🗑
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| produces a new substance | show 🗑
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| speeds up a chemical reaction | show 🗑
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| substances undergo chemical change | show 🗑
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| symbols and subscripts that represent a compound | show 🗑
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| show | chemical bond
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| the smallest particle of an element | show 🗑
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| a chemical reaction that breaks down one substance into two or more substances | show 🗑
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| show | coefficient
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| combining fuel with oxygen to produce fire | show 🗑
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| matter cannot be created or destroyed during a chemical reaction | show 🗑
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| the amount of matter in a given volume | show 🗑
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| two or more elements chemically combined | show 🗑
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| a biological catalyst | show 🗑
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| show | exothermic reaction
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| a substance that releases energy when it burns | show 🗑
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| a substance that slows a chemical reaction | show 🗑
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| does not create a new substance | show 🗑
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| show | molecule
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| show | mixture
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| a chemical reaction where one substance REPLACES another in a compound | show 🗑
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| a chemical reaction where two or more substances combine to form one substance | show 🗑
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| a mixture with substances spread evenly | show 🗑
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| show | subscript
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| a solid that forms from solution during a reaction | show 🗑
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| letters used to identify elements | show 🗑
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| substances formed during a chemical reaction | show 🗑
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| show | reactants
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| show | element
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
8thgraders