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 |