MYP Chemistry Midterm Review

Front

What is a mole in chemistry?

Back

A mole is a unit of measurement in chemistry that represents 6.02 x 10^23 particles (atoms, molecules, ions, etc.) of a substance.

Front

What does the particle diagram of a compound represent?

Back

A particle diagram visually represents the arrangement and types of atoms in a compound, helping to illustrate its molecular structure.

Front

What is the chemical formula for magnesium iodide?

Back

MgI2

Front

Which metal is more reactive: copper or iron?

Back

Iron is more reactive than copper.

Front

Where are nonmetals located on the Periodic Table?

Back

Nonmetals are located in the upper right-hand corner of the Periodic Table.

Front

What is the significance of the number 6.02 x 10^23 in chemistry?

Back

It is known as Avogadro's number and represents the number of atoms or molecules in one mole of a substance.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons between atoms.

Front

What is a chemical compound?

Back

A chemical compound is a substance formed when two or more different elements are chemically bonded together.

Front

What is the role of a catalyst in a chemical reaction?

Back

A catalyst speeds up a chemical reaction without being consumed in the process.

Front

What is the pH scale used for?

Back

The pH scale measures the acidity or basicity of a solution, ranging from 0 (acidic) to 14 (basic), with 7 being neutral.