Mod Last Chemistry test study guide

Front

Where are metals located on the periodic table?

Back

Metals are primarily located on the left side and in the center of the periodic table, often represented in blue.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

Isotopes of an element contain an equal number of protons but a different number of _____________.

Back

neutrons.

Front

If a balloon is cooled, what will happen to the volume?

Back

The volume will decrease.

Front

Which of the choices is the best measurement to write for the blue line pictured when using proper metric measurement technique?

Back

0.31.

Front

What is the definition of an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is the difference between a compound and a mixture?

Back

A compound is a substance formed when two or more elements chemically bond together, while a mixture is a combination of two or more substances that retain their individual properties.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

Front

What is the pH scale?

Back

The pH scale measures how acidic or basic a solution is, ranging from 0 (acidic) to 14 (basic), with 7 being neutral.