Lessons 1, 2, and 3 Review

Front

What is the definition of matter?

Back

Matter is anything that has mass and takes up space.

Front

Is gas considered matter?

Back

True, gas is a form of matter and has mass.

Front

What is a closed system in the context of chemistry?

Back

A closed system is one where no matter enters or leaves, allowing for the study of reactions without external interference.

Front

What happens when a bath bomb is mixed with water in a closed system?

Back

The gas produced is a result of the chemical reaction between the bath bomb ingredients and water.

Front

What is the state of matter that has a definite shape and volume?

Back

Solid.

Front

How are particles arranged in a gas?

Back

Particles in a gas are arranged far apart and move freely, allowing them to fill the container they are in.

Front

What is the difference between a solid and a liquid in terms of particle arrangement?

Back

In a solid, particles are closely packed in a fixed arrangement, while in a liquid, particles are close together but can move past one another.

Front

What is the process called when a solid turns into a gas?

Back

Sublimation.

Front

What is the principle of conservation of mass in a chemical reaction?

Back

The principle states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change, as it changes from solid to liquid without altering its chemical composition.