Chemistry Chapter 1: Basic Concepts

Chemistry is the study of matter, its physical and chemical properties, and the physical and chemical changes it undergoes under different conditions.

Matter can be classified into pure substances and mixtures based on chemical composition.

Organic, inorganic, physical, bio, and analytical chemistry.

<p>Chemistry impacts every aspect of life, from the air we breathe to the food we eat, transportation, medicine, engineering, agriculture, and more.</p> Signup and view all the answers

<p>Organic chemistry is focused on the properties and reactions of compounds of carbon.</p> Signup and view all the answers

<p>Pure substances have a definite chemical composition and consistent properties, while mixtures do not have a fixed chemical composition and hence no specific properties.</p> Signup and view all the answers

<p>Examples of pure substances include pure metal and distilled water. Examples of mixtures include paint (mixture of oils, pigment, additives) and concrete (mixture of sand, cement, water).</p> Signup and view all the answers

<p>Sea water is a mixture, gasoline is a mixture, skin is a mixture, a rusty nail is a pure substance, a page of the textbook is a mixture, diamond is a pure substance.</p> Signup and view all the answers

<p>Pure substances are further divided into elements and compounds.</p> Signup and view all the answers

<p>Elements are classified as metals, nonmetals, and metalloids.</p> Signup and view all the answers