General Chemistry Chapter 1 | Latest
Update | 2024/2025 | Rated A+
What is the definition of matter in the context of chemistry?
✔✔ Matter is anything that has mass and occupies space. It consists of atoms and molecules and
can exist in different states, such as solid, liquid, or gas.
How is an element defined in chemistry?
✔✔ An element is a pure substance that cannot be broken down into simpler substances by
chemical means. It consists of only one type of atom.
What does the term "compound" refer to in chemistry?
✔✔ A compound is a substance composed of two or more different elements chemically
combined in fixed proportions, and it can be broken down into simpler substances through
chemical reactions.
What is a molecule, and how does it relate to compounds?
✔✔ A molecule is the smallest unit of a compound that retains the chemical properties of that
compound. It consists of two or more atoms bonded together.
1
, What is the definition of a chemical reaction?
✔✔ A chemical reaction is a process in which one or more substances are converted into
different substances with new chemical and physical properties through the breaking and
forming of chemical bonds.
How is a physical change different from a chemical change?
✔✔ A physical change alters the form or appearance of a substance without changing its
chemical composition, while a chemical change results in the formation of new substances with
different chemical properties.
What is meant by the term "chemical property" of a substance?
✔✔ A chemical property describes a substance's ability to undergo changes that transform it into
different substances, such as reactivity with acids or bases.
How is "density" defined in chemistry?
✔✔ Density is defined as the mass of a substance per unit volume, and it is typically expressed
in units like grams per cubic centimeter or kilograms per liter.
What is the significance of the scientific method in chemistry?
2
Update | 2024/2025 | Rated A+
What is the definition of matter in the context of chemistry?
✔✔ Matter is anything that has mass and occupies space. It consists of atoms and molecules and
can exist in different states, such as solid, liquid, or gas.
How is an element defined in chemistry?
✔✔ An element is a pure substance that cannot be broken down into simpler substances by
chemical means. It consists of only one type of atom.
What does the term "compound" refer to in chemistry?
✔✔ A compound is a substance composed of two or more different elements chemically
combined in fixed proportions, and it can be broken down into simpler substances through
chemical reactions.
What is a molecule, and how does it relate to compounds?
✔✔ A molecule is the smallest unit of a compound that retains the chemical properties of that
compound. It consists of two or more atoms bonded together.
1
, What is the definition of a chemical reaction?
✔✔ A chemical reaction is a process in which one or more substances are converted into
different substances with new chemical and physical properties through the breaking and
forming of chemical bonds.
How is a physical change different from a chemical change?
✔✔ A physical change alters the form or appearance of a substance without changing its
chemical composition, while a chemical change results in the formation of new substances with
different chemical properties.
What is meant by the term "chemical property" of a substance?
✔✔ A chemical property describes a substance's ability to undergo changes that transform it into
different substances, such as reactivity with acids or bases.
How is "density" defined in chemistry?
✔✔ Density is defined as the mass of a substance per unit volume, and it is typically expressed
in units like grams per cubic centimeter or kilograms per liter.
What is the significance of the scientific method in chemistry?
2
