front 1 molecule | back 1 smallest particle of pure substance that is capable of a stable independent existence |
front 2 atoms | back 2 particles that make up molecules |
front 3 matter | back 3 anything that has mass or takes up space |
front 4 mass | back 4 measurement of the amount of matter in an object. Object in Earth has same mass as on the moon. |
front 5 weight | back 5 a measurement of the gravitational force acting on an object |
front 6 physical properties of matter | back 6 can be observed without changing the composition |
front 7 chemical properties of matter | back 7 can be observed only by attempting to change the matter into new substances |
front 8 compounds | back 8 pure substances that are made up of 2 or more heteroatomic molecules or individual atoms. |
front 9 elements | back 9 pure substances made up of homoatomic molecules or individual atoms of the same kind |
front 10 Difference between law and theory | back 10 a law describes what nature does under certain conditions and will predict what will happen as long as those conditions are met. A theory explains how nature works. |
front 11 kinetic energy | back 11 energy in motion |
front 12 potential energy | back 12 energy an object has due to its position |
front 13 multiplying scientific notation: (a x 10y)(b x 10z)= | back 13 =(a x b)(10y+z) |
front 14 scientific notation division: (a x 10 y ) (b x 10z) = | back 14 (a/b) (10y-z) |
front 15 scientific notation addition: | back 15 adding and subtracting exponential expressions MUST have like terms |
front 16 significant figures | back 16 leading 0s are never significant figures |
front 17 exact numbers | back 17 numbers that have no uncertainty |
front 18 1 m/x cm | back 18 1 m/100 cm |
front 19 precision | back 19 how close a series of measurements are to one another |
front 20 accuracy | back 20 how close the measure value is to the actual value |