click below
click below
Normal Size Small Size show me how
Science: Unit B
Chemistry of Materials Study Stack
Question | Answer |
---|---|
How many electrons does the element Sodium have? | 11 |
What is glass made from? | silicon sand, soda ash, and limestone |
What material creates a corrosive, red mud when manufacturing? | aluminum |
Name a physical property of a substance. | hardness |
What are not considered to be characteristics of a substance? | shape, size, and mass |
Name a noble gas. | argon |
What makes up a bar of pure gold? | many atoms of pure gold |
How do you know if a chemical reaction took place? | bubbling and/or a change in temperature |
What is a precipitate? | the formation of solid pieces after a reaction |
What are the reactants in a chemical reaction? | the two original substances |
Name a mixture. | vegetable soup |
How many different elements make up one molecule of glucose (C6H1206)? | 3 |
What is found inside the nucleus of an atom? | protons and neutrons |
How many total atoms are in one molecule of H2SO4? | 7 |
Why are alkali metals so reactive? | they have one electron in the outer shell |
Which scientific law states that during a chemical reaction, no matter is created or destroyed; it is just rearranged into new substances? | law of conservation of mass |
What phase are most elements found at room temperature? | solids |
What is the smallest particle of a compound called? | molecule |
What is the atomic number of Titanium? | 22 |
What is the atomic mass of Uranium? | 238 |
How many protons are in an atom of Sulfur? | 16 |
How many electrons are in an atom of Oxygen? | 8 |
How many neutrons are in an atom of Potassium? | 20 |
What is the chemical symbol for Boron? | B |
What is the chemical symbol for Mercury? | Hg |
What is the most reactive metal family? | alkali metals |
Where are the most reactive metals located on the periodic table? | group 1 |
What is the most reactive non-metal family? | halogens |
Where are the most reactive non-metal located on the periodic table? | group 17 |
What is the name of the most non-reactive elements? | noble gases |
What family is Ca in? | alkaline-earth metals |
What is the most common element in the universe? | hydrogen |