Review S1

Front

What is an ionic bond?

Back

An ionic bond is a type of chemical bond that involves the transfer of electrons from one atom to another, resulting in the formation of charged ions.

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond where two or more nonmetals share electrons to achieve stability.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that can be separated by physical means and does not have a fixed composition.

Front

What are the main components of an atom's nucleus?

Back

The nucleus of an atom is primarily composed of protons and neutrons.

Front

What does the law of conservation of mass state?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

What is the difference between a pure substance and a mixture?

Back

A pure substance has a fixed composition and distinct properties, while a mixture consists of two or more substances that can vary in composition.

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom and determine the atomic number of an element.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom that contribute to the atomic mass but do not affect the charge.

Front

What is an example of a covalent bond?

Back

An example of a covalent bond is the bond between two hydrogen atoms in a hydrogen molecule (H2).

Front

What is an example of an ionic bond?

Back

An example of an ionic bond is the bond between sodium (Na) and chlorine (Cl) in sodium chloride (NaCl).