Conservation of Mass Flashcards

Questions and Answers

What does the law of conservation of mass state?

Mass in an isolated system is neither created nor destroyed (correct)

Mass can be created through chemical reactions

Mass of products and reactants are unrelated

Mass can be destroyed by physical transformations

What are reactants?

Substances that take part in and undergo change during a reaction.

What is an atom?

The basic unit of a chemical element.

What is a covalent bond?

A chemical bond involving the sharing of electron pairs between atoms. Signup and view all the answers

What does diatomic mean?

Consisting of two atoms. Signup and view all the answers

What is an element?

A part or aspect of something abstract that is essential or characteristic. Signup and view all the answers

What is a subscript?

A letter, figure, or symbol written or printed below the line. Signup and view all the answers

What is a chemical formula?

A mathematical relationship or rule expressed in symbols. Signup and view all the answers

What are products in a chemical reaction?

An article or substance that is manufactured or refined for sale. Signup and view all the answers

What is a chemical reaction?

A process involving rearrangement of the molecular or ionic structure of a substance. Signup and view all the answers

What is a chemical equation?

The symbolic representation of a chemical reaction. Signup and view all the answers

What is a coefficient in chemistry?

A multiplier or factor that measures some property. Signup and view all the answers

What is a balanced chemical equation?

A chemical equation where the number of different atoms in the reactants equals that in the products. Signup and view all the answers

Study Notes

The Law of Conservation of Mass

Mass in an isolated system is neither created nor destroyed during chemical reactions or physical transformations.
The mass of products in a chemical reaction equals the mass of the reactants.

Reactants

Substances that participate and undergo changes during chemical reactions.

Atoms

The fundamental units of chemical elements.

Covalent Bonds

A type of chemical bond formed by the sharing of electron pairs between atoms.
Shared pairs, or bonding pairs, create a stable balance of attractive and repulsive forces.

Diatomic

Refers to molecules consisting of two atoms.

Elements

Essential components or aspects of chemical substances.

Subscript

Written or printed notation that appears below the line, commonly used in chemical formulas to indicate the number of atoms.

Chemical Formulas

Mathematical relationships or rules expressed using symbols to represent chemical substances.

Products

Articles or substances produced or refined, typically for sale, as a result of chemical reactions.

Chemical Reactions

Processes involving the rearrangement of molecular or ionic structures rather than mere physical changes or nuclear reactions.

Chemical Equations

Symbolic representations of chemical reactions, with reactants on the left and products on the right.

Coefficients

Factors that serve as multipliers to quantify the number of molecules or moles of a substance in chemical equations.

Balanced Chemical Equations

Equations that adhere to the law of conservation of mass, showing equal numbers of each type of atom in reactants and products.
Achieved through a trial and error process to ensure balance.

Description

Explore the fundamental concept of the law of conservation of mass through flashcards. These flashcards provide definitions and explanations of key terms, such as 'reactants' and the law itself, crucial for understanding chemical reactions. Perfect for students aiming to grasp this essential principle in chemistry.