Physical Science Final Exam Review

Front

What type of reaction occurs when two ionic compounds exchange ions?

Back

Double Replacement Reaction: A chemical reaction where two compounds exchange ions to form two new compounds.

Front

What is an example of an exothermic process?

Back

Water freezing: A process that releases energy in the form of heat.

Front

What is the chemical formula for ammonium hydroxide?

Back

NH₄OH: The formula representing ammonium hydroxide, a common base.

Front

What is a chemical property of a material?

Back

Flammability: A chemical property that describes the ability of a substance to catch fire.

Front

What does a distance vs. time graph indicate about an object's motion?

Back

It shows how far an object has traveled over a specific time period.

Front

What is the definition of an endothermic process?

Back

An endothermic process is a reaction that absorbs energy from its surroundings.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is the law of conservation of mass?

Back

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

Front

What is the significance of the pH scale in chemistry?

Back

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

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time: This formula calculates the speed of an object based on the distance traveled and the time taken.