PS Chemical Rxns Word Scramble
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| Question | Answer |
| starting material in a chemical reaction | reactants |
| ending material in a chemical reaction | products |
| speeds up a chemical reaction in nonliving things | catalyst |
| Numbers never changed to balance a chemical equation | subscripts |
| Numbers added to balance a chemical equation | coefficients |
| a chemical equation that has unequal numbers of each element on both sides | skeleton |
| this is conserved (saved) in every chemical reaction | mass & number of atoms |
| use this coefficient if you do NOT want any change to the number of atoms | one |
| says that mass is not created or destroyed in any chemical reaction | law of conservation of mass |
| AB --> A + B | decomposition reaction |
| AB + C ---> CB + A | single replacement reaction |
| A + B --> AB | synthesis (combination) reaction |
| AB + CD --> AD + CB | double replacement reaction |
| CxHy + O2 --> CO2 + H2O | combustion reaction |
| means 2 atoms | diatomic |
| means 8 atoms | octatomic |
| means 4 atoms | tetratomic |
| means 1 atom | monatomic |
| examples of diatomic elements | Br , N , H |
| examples of tetratomic elements | P , As |
| example of octatomic elements | S |
| used to determine if a single replacement reaction will occur | activity series of metals & halogens list |
| reactants are found on this side of the chemical equation | left |
| products are found on this side of the chemical equation | right |
| catalyst are found here in a chemical equation | above the arrow |
| this energy is needed to start a chemical reaction | activation energy |
Created by:
cadetjt
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