Understanding Matter and Its Properties

What is Matter?

• Matter is the absence of space.
• Matter is anything that has mass and occupies space.
• Matter is a type of energy.
• Matter is only found in solid form.

What Are Elements?

• Elements are only found in living organisms.
• Elements are mixtures of different substances.
• Elements are the simplest forms of matter, made up of atoms.
• Elements are complex structures made of molecules.

What is a Mole?

• A mole is a unit of measurement in that represents 6.022 x 10^23 particles.

• A mole is a type of chemical reaction that occurs in a lab.
• A mole is a skin condition caused by sun exposure.
• A mole is a type of animal found in the ground.

What are the States of Matter?

• solid, liquid, gas, vapor
• solid, liquid, gas, fog
• solid, liquid, gas, mist
• Solid, liquid, gas, plasma

What are the properties of Solids?

• Definite shape and volume

• No definite shape but definite volume

• No definite shape and volume

• Variable shape and volume

What are the properties of Liquids?

• Definite shape and volume

• No definite shape but nearly fixed volume

• No definite shape and volume

• Variable shape and volume

What are the properties of Gases?

• Definite shape and volume

• No definite shape and volume

• No definite shape but definite volume

• Variable shape and volume

Which of the following is a key assumption of the ideal gas model?

• . Molecules have significant potential energy of interaction.

• Collisions between molecules are perfectly elastic.

• Molecules have large attractive forces between them.

• Molecular spacing is negligible compared to their size.

Approximately how much of the universe's matter is in the plasma state?

• 50%

• 60%

• 99.9%

• 80%

What is a compound?

• A mixture of elements in varying ratios.

• A substance formed when two or more elements chemically combine in a fixed ratio.

• A physical blend of two or more substances.

• A single element in its pure form.