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Chem Lecture- quiz 1
| Question | Answer |
|---|---|
| Law of Conservation of Mass | there is no change in the total quantity of matter present when matter converts from a chemical change or a physical change. |
| chemical change | matter converts from one type to another |
| physical change | changes among solid, liquid, or gaseous states |
| heterogeneous | unevenly mixed |
| homogeneous | uniform, the same amount |
| oxygen | O |
| silicon | Si |
| aluminum | Al |
| iron | Fe |
| calcium | Ca |
| sodium | Na |
| potassium | K |
| magnesium | Mg |
| hydrogen | H |
| titanium | Ti |
| chlorine | Cl |
| phosphorus | P |
| manganese | Mn |
| carbon | C |
| barium | Ba |
| nitrogen | N |
| fluorine | F |
| strontium | Sr |
| 2.54cm= | 1 inch |
| 1 kg= | 2.205 lbs |
| 4 quarts = | 1 gallon |
| 1 mL= | 1 cm3 |
| Given= | stands alone not a conversion factor |
| find= | what unit you're solving for |
| Conversion factor | is between both given and find |
| physical property | a characteristic of matter that is not associated with a change in its chemical composition. |
| chemical property | The change of one type of matter into another type |
| extensive property | a property that depends on the amount of matter |
| intensive property | a property that does not depend on the amount of matter |
| length | meter (m) |
| mass | kilogram (kg) |
| electric current | ampere, A |
| amount of substance | mole (mol) |
| luminous intensity | candela (cd) |
| femto (f) | 10^-15 |
| pico (p) | 10^-12 |
| nano (n) | 10^-9 |
| micro(ยต) | 10^-6 |
| milli (m) | 10^-3 |
| centi (c) | 10^-2 |
| deci (d) | 10^-1 |
| kilo (k) | 10^3 |
| Mega (M) | 10^6 |
| Giga (G) | 10^9 |
| tera (T) | 10^12 |
| 1 meter | 39.37 inches or 1.094 yards |
| 1 kilogram | 2.2 pounds |
| water freezes at | 273.15K |
| water boils at | 373.15 K |
| density= | mass/volume |
| speed = | distance/time |
| time= | distance/speed |
| 1 m = | 1.0936 yd |
| 1 inch = | 2.54 cm |
| 1 km = | 0.62137 mi |
| 1L = | 1.057 qt |
| 1 qt = | 0.94635 L |
| 1 ft ^3 | 28.317 L |
| 1 tbsp = | 14.787 mL |
| 1 kg = | 2.2046 lbs |
| 1 lb = | 453.59 g |
| 1 (troy) oz | 31.103 grams |
Created by:
samanthal530
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