Key Concepts in Chemistry

Matter that is different from place to place; incongruous and not uniform.

Matter that is the same throughout; uniform appearance.

Homogeneous material that has its own, unique properties.

<p>Homogeneous substance that has the same properties as its components.</p> Signup and view all the answers

<p>A pure substance that cannot be broken down by chemical means.</p> Signup and view all the answers

<p>A pure substance that can be broken down by chemical means.</p> Signup and view all the answers

<p>The study of matter and the changes that it undergoes.</p> Signup and view all the answers

<p>Substances that decrease the thickness of the ozone layer.</p> Signup and view all the answers

<p>Anything that has mass and takes up space.</p> Signup and view all the answers

<p>Measurement that reflects the amount of matter in an object.</p> Signup and view all the answers

<p>A measure of the amount of matter and the measure of Earth's gravitational pull on that matter.</p> Signup and view all the answers

<p>A visual, verbal, or mathematical explanation of experimental data.</p> Signup and view all the answers

<p>The study of most carbon-containing materials.</p> Signup and view all the answers

<p>The study of matter that does not contain carbon.</p> Signup and view all the answers

<p>The study of the behavior and changes of matter and related energy changes.</p> Signup and view all the answers

<p>The study of the components and composition of substances.</p> Signup and view all the answers

<p>The study of substances and processes of living organisms.</p> Signup and view all the answers

<p>The study of matter and the environment.</p> Signup and view all the answers

<p>The study of chemical processes in industry.</p> Signup and view all the answers

<p>The study of polymers and plastics.</p> Signup and view all the answers

<p>The smallest unit of an element that still has the properties of that element.</p> Signup and view all the answers

<p>The smallest unit of a compound that still has the properties of that compound.</p> Signup and view all the answers

<p>Solids, liquids, gases, and plasma.</p> Signup and view all the answers

<p>Characteristics of matter that can be observed or measured without changing the sample's composition.</p> Signup and view all the answers

<p>Physical properties that depend on the amount of matter present.</p> Signup and view all the answers

<p>Physical properties that are independent of the amount of matter present.</p> Signup and view all the answers

<p>The ability or inability of a substance to combine with or change into one or more different substances.</p> Signup and view all the answers

<p>Changes that alter substances without changing their composition.</p> Signup and view all the answers

<p>Processes that involve one or more substances changing.</p> Signup and view all the answers

<p>Color change, formation of a precipitate, gas formation, or temperature change.</p> Signup and view all the answers

<p>When a solid changes to a liquid.</p> Signup and view all the answers

<p>When a liquid changes to a solid.</p> Signup and view all the answers

<p>When a liquid turns into a gas.</p> Signup and view all the answers

<p>When a gas turns into a liquid.</p> Signup and view all the answers

<p>When a solid changes directly to a gas.</p> Signup and view all the answers

<p>When a gas changes directly to a solid.</p> Signup and view all the answers

<p>States that, in any type of change, mass is neither created nor destroyed.</p> Signup and view all the answers

<ol start="90"> <li></li> </ol> Signup and view all the answers

<p>Because the Latin name was used.</p> Signup and view all the answers

<p>The creator of the Periodic Table of the Elements.</p> Signup and view all the answers

<ol start="1869"> <li></li> </ol> Signup and view all the answers

<p>A table that organizes elements into a grid based on patterns and similarities.</p> Signup and view all the answers

<p>Horizontal rows in the Periodic Table.</p> Signup and view all the answers

<p>Vertical columns in the Periodic Table that have similarities.</p> Signup and view all the answers

<p>The law that states that a compound is always composed of the same elements in the same proportion by mass.</p> Signup and view all the answers

<p>By calculating the mass of the elements that make up the compound.</p> Signup and view all the answers

<p>Percent by Mass = (mass of an element/mass of a compound) * 100%.</p> Signup and view all the answers

<p>States that when different compounds are formed by a combination of the same elements, different masses of one element combine with the same fixed mass of the other element in small whole numbers.</p> Signup and view all the answers