Chemistry I CP Practice Final Exam

Front

What are the products of the reaction: NaOH + HCl 🡪 ?

Back

H2O + NaCl

Front

What is a chemical formula that is arranged in the smallest whole number ratio?

Back

Empirical Formula

Front

What is a 3-D, repeating pattern of + and – ions formed by ionic compounds called?

Back

Crystal

Front

What shape (geometry) is always an exception to the octet rule?

Back

Trigonal bipyramidal

Front

What does the number 80 in the name bromine-80 represent?

Back

The mass number

Front

What is the definition of a chemical reaction?

Back

A process that leads to the transformation of one set of chemical substances to another.

Front

What is the principle behind the Octet Rule?

Back

Atoms tend to bond in such a way that they have eight electrons in their valence shell.

Front

What is the difference between a molecular formula and an empirical formula?

Back

A molecular formula shows the actual number of atoms of each element in a molecule, while an empirical formula shows the simplest whole number ratio of the elements.

Front

What is the definition of a covalent bond?

Back

A chemical bond that involves the sharing of electron pairs between atoms.

Front

What is the significance of the atomic number?

Back

It represents the number of protons in the nucleus of an atom and determines the element's identity.