| A | B |
|---|
| Silver oxide when it is heated decomposes to produce silver and oxygen gas. | 2Ag2O-->4Ag+O2 |
| Who created/discovered the law of conservation of mass? | Lavoisier |
| Balance the equation Sb+Cl2-->SbCl3 | 2Sb+2Cl2-->2SbCl2 |
| Balance the equation Al+H2SO4-->Al2(SO4)3+H2 | 2Al+3H2SO4-->Al2(SO4)3+3H2 |
| tell the number of units of each substance taking part in a chemical reaction (2H₂=two hydrogen, 2H₂0=two water) | Coefficients |
| tells the number of specific atoms taking part in a chemical reaction (o₂=two oxygen atoms) | Subscripts |
| two or more substances combine to form another A + B → AB | Synthesis |
| one substance breaks down (decomposes) into two or more simpler substances AB → A + B | Analysis |
| one element replaces another element in a compound AB + C → AC + B | Single replacement |
| two new compounds are formed AB + CD → AC + BD | Double Replacement |
| the substance that exists before the reaction begins | reactants |
| the substances that are formed as a result of the reaction | products |
| What does (g) mean | gas |
| What does (aq) mean | aqueous |
| Aqueous? | dissolved in water |
| a chemical reaction in which two compounds exchange elements or molecules | double replacement |
| two or more substances combine to form another substance | synthesis |
| a ______ is a change where one or more substances are converted into new substances | chemical reaction |
| a _____ chemical equation has the same number of atoms of each element on both sides | balanced |
| a _____ is an insoluble compound that comes out of solution during a reaction | precipitate |
| the # of reactants = the # of products | balanced equation |
| Identify & Balance: __Na + __F₂ → __NaF | synthesis 2 Na + F₂ → 2 NaF |
| Identify & Balance: __BaCl₂ + __Na₂SO₄ → __NaCl + __BaSO₄ | double replacement BaCl₂ + Na₂SO₄ → 2 NaCl + BaSO₄ |
| Identify & Balance: __CH₄ + __O₂ → __CO₂ + __H₂O | combustion CH₄ + 2 O₂ → CO₂ + 2 H₂O |
| Identify & Balance: __Fe +__O₂ → __Fe₂O₃ | synthesis 4 Fe + 3 O₂ → 2 Fe₂O₃ |
| Identify & Balance: __CF₄ + __Br₂ → __CBr₄ + __F₂ | single replacement anion CF₄ + 2 Br₂ → CBr₄ + 2 F₂ |
| negatively charged ion | anion |
| positively charged ion | cation |
| How many chlorine atoms are needed to make a neutral compound with zinc (II)? | 2... neutralized compound: Zn Cl₂ |
| How many lithium atoms are needed to make a neutral compound with carbonate? | 2... neutralized compound: Li₂ CO₃ |
