(A) Chemical Bonding and Equations Review

Front

What is a chemical reaction?

Back

A process where substances (reactants) transform into new substances (products), often indicated by signs such as gas bubbles, color change, or temperature change.

Front

What is a sign that a chemical reaction has occurred?

Back

Bubbles of gas appear.

Front

What happens to electrons in a covalent bond?

Back

Electrons are shared between atoms.

Front

What types of atoms form a covalent bond?

Back

Two nonmetals.

Front

What is a metallic bond?

Back

A bond formed between metal atoms, where electrons are shared in a 'sea' of electrons.

Front

What is an ion?

Back

A charged atom that can be either positive (cation) or negative (anion).

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons.

Front

What are reactants in a chemical equation?

Back

The starting substances that undergo a chemical change.

Front

What are products in a chemical equation?

Back

The substances formed as a result of a chemical reaction.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.