Chemistry 1st Semester Review 2024

Front

What is the chemical formula for Tetranitrogen nonoxide?

Back

N4O9

Front

How do you convert grams of an element to atoms?

Back

Use dimensional analysis with the molar mass and Avogadro's number.

Front

What is a physical property?

Back

A characteristic of a substance that can be observed without changing its identity, e.g., boiling point.

Front

What is the name of K2O?

Back

Potassium Oxide

Front

What is the formula for copper(I) sulfate?

Back

Cu2SO4

Front

What is the boiling point of water in degrees Celsius?

Back

100 degrees Celsius.

Front

What is the significance of Avogadro's number?

Back

It is used to convert moles to atoms or molecules, approximately 6.022 x 10^23.

Front

Define a chemical property.

Back

A characteristic that can only be observed during a chemical reaction, e.g., flammability.

Front

What is the molar mass of Lithium (Li)?

Back

Approximately 6.94 g/mol.

Front

What does the term 'dimensional analysis' refer to?

Back

A mathematical technique used to convert units by multiplying by conversion factors.