Chem 111 Chp 1
Card Set Information
Chem 111 Chp 1
Chemistry 111 Chapter 111
The closeness of a measurement to the true value.
A neutral particle having one nucleus; the smallest representative sample of an element.
A change that converts substances into other substances; a chemical reaction.
The ability of a substance, either by itself or with other substances, to undergo a change into new substances.
A change in which new substances (products) form from starting materials (reactants).
A substance consisting of chemically combined atoms from two or more elements and present in a definite ratio.
A statement that is based on what we think about a series of observations.
The information (often in the form of physical quantities) obtained in an experiment or other experience or from references.
A chemical reaction that changes one substance into two or more simpler substances.
A property of an object that is described by a physical quantity whose magnitude is proportional to the size or amount of the object (e.g., mass or volume)
A tentative explanation of the results of experiments.
A property whose physical magnitude is independent of the size of the sample, such as density or temperature.
A description of behavior (and not an explanation of behavior) based on the results of many experiments.
Any matter consisting of two or more substances physically combined in no particular proportion by mass.
A neutral particle composed of two or more atoms combined in a definite ratio of whole numbers.
A statement that accurately describes something we see, hear, taste, feel, or smell.
A change that is not accompanied by a change in chemical makeup.
A property that can be specified without reference to another substance and that can be measured without causing a chemical change.
How reproducible measurements are; the fineness of a measurement as indicated by the number of significant figures reported in the physical quantity.
A characteristic of matter.
An element or a compound.
Observations that do not involve numerical information.
An observation involving a measurement and numerical information.
The observation, explanation, and testing of an explanation by additional experiments.
The digits in a physical measurement that are known to be certain plus the first digit that contains uncertainty.
A homogeneous mixture in which all particles are of the size of atoms, small molecules, or small ions.
A tested explanation of the results of many experiments.
The amount by which a measured quantity deviates from the true or actual value.