Front

What is the maximum number of electrons that an orbital can have?

Back

2

Front

Matter is anything that has:

Back

mass and volume

Front

What is the formula for density?

Back

density = mass / volume

Front

The SI unit for measuring length is the __________.

Back

meter

Front

How did Mendeleev arrange the elements?

Back

atomic number

Front

What is an atom?

Back

The smallest unit of an element that retains the properties of that element.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only 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

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What is the pH scale?

Back

A scale used to measure the acidity or basicity of a solution, ranging from 0 (acidic) to 14 (basic).