87368408 | qualitative measurement | measurments that have to do with the amount of substance, not numerical value | 0 | |
87368409 | quantitative measurment | characteristic involves a numerical measurement | 1 | |
87368410 | accuracy | the extent to which a given measurement agrees with the standard value for that measurement | 2 | |
87368411 | precision | the extent to which a given set of measurements of the same sample agree with their mean | 3 | |
87368412 | density | mass per unit volume | 4 | |
87368413 | matter | something that occupies space | 5 | |
87368414 | mass | a body of coherent matter, usually of indefinite shape and often of considerable size | 6 | |
87368415 | weight | a system of units for expressing heaviness or mass | 7 | |
87368416 | volume | the amount of space, measured in cubic units, that an object or substance occupies | 8 | |
87368417 | pure substance | a kind of matter that cannot be separated into other kinds of matter by any physical or chemical process | 9 | |
87368418 | atom | are the basis for everything in the Universe | 10 | |
87368419 | molecule | an electrically neutral group of at least two atoms in a definite arrangement held together by very strong (covalent) chemical bonds | 11 | |
87368420 | element | a component or constituent of a whole or one of the parts into which a whole may be resolved by analysis | 12 | |
87368421 | compound | composed of two or more parts, elements | 13 | |
87368422 | solid | having three dimensions (length, breadth, and thickness | 14 | |
87368423 | liquid | composed of molecules that move freely among themselves but do not tend to separate like those of gases | 15 | |
87368424 | gas | a substance possessing perfect molecular mobility and the property of indefinite expansion | 16 | |
87368425 | physical property | any property used to characterize matter and energy and their interactions | 17 | |
87368426 | chemical property | characteristic of a substance that becomes known during a chemical reaction | 18 | |
87368427 | physical change | when objects undergo a change that does not change their chemical nature | 19 | |
87368428 | chemical change | substances are changed into different substances | 20 | |
87368429 | mixture | an aggregate of two or more substances that are not chemically united and that exist in no fixed proportion to each other | 21 | |
87368430 | heterogeneous mixture | made up by two or more different substances which are (mixed) together but are not combined chemically | 22 | |
87368431 | homogeneous mixture | a mixture made up of two or more elements that are chemically combined. | 23 | |
87368432 | mole | 6.02x10^23 | 24 | |
87717876 | Exothermic Heat | Heat is given off. ex: fireworks | 25 | |
87717877 | Endothermic Heat | Heat is absorbed. ex: cooking a hamburger | 26 |
Chemistry Unit 1 Flashcards
Primary tabs
Need Help?
We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.
For general help, questions, and suggestions, try our dedicated support forums.
If you need to contact the Course-Notes.Org web experience team, please use our contact form.
Need Notes?
While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!