Chemistry Mini Proficiency #2 Review 22-23

Front

What do 4 grams of hydrogen and 32 grams of oxygen combine to form?

Back

36 grams of water.

Front

How many elements are in the chemical formula C6H10O5?

Back

3 elements.

Front

What does the letter 'A' represent on the periodic table?

Back

Atomic Number.

Front

What is density?

Back

How closely particles are packed together.

Front

What is a chemical change?

Back

A process where atoms rearrange themselves to produce something new.

Front

What is a physical change?

Back

A change where the form of a substance changes but not its chemical composition.

Front

What is the atomic mass?

Back

The mass of an atom, typically measured in atomic mass units (amu).

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.