Ch 2 Mid-Test (2.1-2.2)

Front

What is a mixture?

Back

A mixture is when two or more different substances combine and keep their own physical properties and can be easily separated.

Front

What type of bond is formed when atoms transfer electrons?

Back

Ionic bonds are formed when atoms transfer electrons.

Front

True or False: The properties of the elements that make up a compound are usually very similar to the compound itself.

Back

False. The properties of a compound are usually different from the properties of the elements that make it up.

Front

What is formed when two or more elements chemically combine?

Back

A compound is formed when two or more elements chemically combine.

Front

If a substance has a pH of 4, is it an acid, base, or neutral?

Back

It is an acid.

Front

Define a compound.

Back

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

Front

What is the difference between a mixture and a compound?

Back

A mixture retains the properties of its components and can be separated, while a compound has different properties and cannot be separated by physical means.

Front

What is an ionic bond?

Back

An ionic bond is a type of chemical bond that occurs when one atom transfers electrons to another atom.

Front

What is the pH scale?

Back

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

Front

What is a solution?

Back

A solution is a homogeneous mixture where one substance (the solute) is dissolved in another (the solvent).