Semester Exam

Front

What is the mass number defined as?

Back

The mass number is defined as the number of protons + neutrons.

Front

What is the molar mass of table salt (NaCl)?

Back

The molar mass of table salt (NaCl) is 58.443 g/mol.

Front

Which type of reaction is: NaCl + AgNO3 → NaNO3 + AgCl?

Back

This is a Double Displacement reaction.

Front

How do you calculate the average atomic mass of an element?

Back

The average atomic mass is calculated by multiplying the mass of each isotope by its relative abundance and summing the results.

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state.

Front

Put the following in order of increasing ionization energy: Strontium, Aluminum, Indium.

Back

The order is Strontium, Indium, Aluminum.

Front

What is the formula for calculating molar mass?

Back

Molar mass is calculated by summing the atomic masses of all atoms in a molecule.

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product.

Front

What is a decomposition reaction?

Back

A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products.

Front

What is a single displacement reaction?

Back

A single displacement reaction is a chemical reaction where one element replaces another in a compound.