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Chemistry Post Test
Questions from Pretest, BM 1 and BM 2 Chemistry Assessments for the Post Test
| Question | Answer |
|---|---|
| The smallest unit of matter is called a(n): | atom |
| A specific type of atom is called a(n): | element |
| Two or more atoms or elements bonded together is a: | molecule |
| Two or more DIFFERENT elements bonded together is a | compound |
| A positively charged subatomic particle | proton |
| A negatively charged subatomic particle | electron |
| A neutral charged subatomic particle | neutron |
| Where does the most correct and most up to date atomic model say the electron s are? | Clouds |
| How many protons does Boron have? | 5 |
| How many electrons does Magnesium have? | 12 |
| How many neutrons does Lithium have? | 4 |
| Where are metals on the periodic table? Left, stair step or right? | Left |
| Which metals are the most reactive? | Alkali |
| Where are non metals on the periodic table? Left, stair step or right? | Right |
| Where are metalloids on the periodic table? Left, stair step or right? | Stairstep |
| What is the most reactive NON metal? | Fluorine |
| What is the most reactive METAL? | Francium |
| What is the most common type of element in fireworks? Metals or non metals? | Metals |
| Do element symbols ever have two capital letters? | NO |
| Can a compound formula ever have two capital letters? | YES |
| All elements in a family have the same number of _____________ electrons. | Valence |
| Physical or Chemical Property? Flammability | Chemical |
| Physical or Chemical Property? State of Matter | Physical |
| Physical or Chemical Property? Color | Physical |
| Physical or Chemical Change? Burning wood | Chemical |
| Physical or Chemical Change? Boiling water | Physical |
| Physical or Chemical Change? Vinegar and baking soda | Chemical |
| Physical or Chemical Change? Cooking food | Chemical |
| A chemical reaction in fireworks in chemical called "oxidation reaction" produces this: | Oxygen |
| What side of the arrow are products found? | Right |
| What does the arrow mean in chemical reactions? | Yields |
| The three parts of the fire triangle present in fireworks are Fire, heat and? | Oxygen |
| What can a firefighter remove from the fire triangle in a fireworks disaster? | Heat |
| What part of the fire triangle would all the gunpowder and metals inside a firework be considered? | Fuel |
| Where is the safest place to enjoy fireworks, at home or at a community show? | Community Show |
| What is the most common injury when misusing fireworks? | Burns |
| True or False: Elements can be created or destroyed during a chemical reaction | False |
| What do we call the big number written out front of a chemical formula that indicates how many molecules there are? | Coefficient |
| What do we call small numbers to the right of element symbols that indicates how many atoms there are? | Subscript |
| How many oxygen atoms? 5 H2O2 | 10 |
| How many molecules of Salt? NaCl | 1 |
| How many carbon atoms? 5 CH4 | 5 |
Created by:
erica.sprague
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