Podcast
Questions and Answers
Chemistry is the study of ______ & the ______ it undergoes.
Chemistry is the study of ______ & the ______ it undergoes.
matter; changes
What can be physically separated?
What can be physically separated?
Mixture
What is a form of matter that has a uniform, definite composition and discrete properties?
What is a form of matter that has a uniform, definite composition and discrete properties?
Compound
An element consists of only one type of substance and has a fixed composition.
An element consists of only one type of substance and has a fixed composition.
Signup and view all the answers
What is the smallest particle of an element that has the properties of that element?
What is the smallest particle of an element that has the properties of that element?
Signup and view all the answers
What consists of two or more atoms joined by strong forces?
What consists of two or more atoms joined by strong forces?
Signup and view all the answers
Which of the following statements is true regarding elements and molecules? (Select all that apply)
Which of the following statements is true regarding elements and molecules? (Select all that apply)
Signup and view all the answers
What can have a net positive or negative charge?
What can have a net positive or negative charge?
Signup and view all the answers
Who formulated the atomic theory based on experiments?
Who formulated the atomic theory based on experiments?
Signup and view all the answers
Study Notes
Foundation in Science
- Chemistry is the study of matter, its properties, and the changes it undergoes.
- Matter can be physically separated and exists in different forms.
- A substance with a uniform and definite composition is classified as a compound or element.
- Mixtures can be categorized into homogeneous (uniform composition) and heterogeneous (distinct, separate components).
Elements and Compounds
- An element is a substance consisting of only one type of atom with a fixed composition.
- A compound consists of two or more atoms joined by chemical bonds, forming a distinct substance.
Atoms and Molecules
- An atom is the smallest particle of an element with the properties of that element; atoms are very small and light.
- Most elements exist as molecules, which are formed by two or more atoms bonded together.
- Molecules can consist of atoms of the same element or different elements, exhibiting a range of properties.
Atomic Theory
- Atoms and molecules can carry a net positive or negative charge.
- The term "atom" comes from the Greek word “atomos,” meaning indivisible.
- An early proponent of atomic theory formulated his ideas based on experimental observations, suggesting the fundamental existence of atoms.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz covers foundational concepts in science, particularly focusing on chemistry. It includes various processes and properties of matter which are fundamental to understanding chemical reactions and physical changes. Prepare to test your knowledge in science basics relevant to the July 2024 semester.
