Miriam's Chem. Stack
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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| Law of Conservation of Mass | Nothing is ever created or destroyed, only changed. Product always = Reactants.
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| Physical Change | Affects only physical properties, such as its size and shape, or whether it is a solid, liquid, or gas.
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| Chemical Change | Produce new substances that have properties different from those of the original substance, E.x: burning or rust on a bike's handlebars.
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| Element | Substance that cannot be broken down into simpler substances.
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| Chemical Formula | A combination of chemical symbols and numbers to represent a substance.
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| Element Molecule | Molecules composed only of two atoms of either the same or different chemical elements.
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| Compound Molecule | The molecule is the smallest unit of a compound.
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| Chemical Equation | Shorthand form for writing what reactants are Used and what products are formed in a chemical reaction.
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| Chemical Reaction | Process that produces chemical change, resulting in new substances that have properties different from those of the original substances.
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| Reactants | Substance that exists before a chemical reaction begins.
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| Products | Substance that forms as a result of a chemical reaction.
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| Coefficient | Indicates the number of molecules of reactants or products.
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| Subscript | Numbers used to tell you how many atoms of an element are present in the equation.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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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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