Acids
Bases
Reactions
Matter
General Chemistry
100

An example of an Acid

Vinegar, Lemon Juice, Orange Juice, etc.

100

An example of a base

Baking soda, amonia, bleach, soap, etc.

100

What is an exothermic reaction?

An exothermic reaction is any chemical reaction that releases heat to the environment.

100

What are the three main states of matter?

Solid, liquid, and gas.

100

What is the "universal solvent"?

Water

200

What is the pH range of an acid?

 0 to 6.9

200

What is the pH range of a base?

7.1 to 14

200

What is an endothermic reaction?

An endothermic reaction is any chemical reaction that absorbs heat from the environment.

200

What is the term for a change of state from liquid to gas?

Evaporation

200

Which gas makes balloons float when used to fill them?

Helium

300

What is the acid commonly found in citrus fruits like lemons and oranges?

Citric acid

300

What common household item, used for baking, is a base?

Baking soda

300

What item commonly uses a combustion reaction?

A car's engine.

300

What do we call a substance that has a fixed shape and volume?

Solid

300

Approximately what percentage of the human body is made up of water?

60%

400

This acid, found in many dairy products, is produced during fermentation and is known for giving yogurt its tangy taste.

A) Lactic Acid

B) Acetic Acid

C) Hydrochloric Acid

A) Lactic Acid

400

What base is often used in antacid tablets to neutralize stomach acid?

A) Sodium hydroxide

B) Acetic acid

C) Magnesium hydroxide

C) Magnesium hydroxide

400

What happens to an element during Oxidation?

An element gains oxygen and loses hydrogen.

400

 What is the name of the process where a solid changes directly into a gas?

Sublimation

400

Which metal is known for being extremely non-reactive and doesn't tarnish or rust easily?

Gold

500

This strong acid is used in car batteries and has the chemical formula H₂SO₄.

A) Citric Acid

B) Sulfuric acid

C) Lactic Acid

B) Sulfuric acid

500

Which base is commonly used in drain cleaners and is also known as lye?

A) Ammonia 

B) Sodium hydroxide

C) Hydrogen Peroxide

B) Sodium hydroxide

500

What is the general form of a decomposition reaction? 

A) A-B --> A

B) A*B --> A^2

C) AB --> A+B

D) A+B --> AAB

C) AB --> A+B

500

In what state of matter do particles have the most energy?

Gas

500

In the periodic table, what does the atomic number represent?

The number of protons in an atom’s nucleus