Chemistry Unit 1

What are intrinsic properties?

• Intrinsic properties are the inherent qualities or characteristics of an object or entity that are independent of external factors or influences.

• Intrinsic properties are the qualities or characteristics of an object or entity that are only relevant in certain situations.

• Intrinsic properties are the qualities or characteristics of an object or entity that can be changed or modified.

• Extrinsic properties are the inherent qualities or characteristics of an object or entity that are dependent on external factors or influences.

Give an example of an intrinsic property.

• Weight

• Color

• Shape

• Size

What is the difference between physical and chemical properties?

• Physical properties can be observed with the naked eye, while chemical properties require specialized equipment.

• Physical properties are permanent and cannot be changed, while chemical properties can be altered through chemical reactions.

• Physical properties are only applicable to solids, while chemical properties apply to all states of matter.

• Physical properties can be observed or measured without changing the substance's composition, while chemical properties describe how a substance interacts with other substances to form new substances.

Name a physical property of water.

• density

• odorless

• colorless

• boiling point

What is a chemical property of iron?

• Ability to dissolve in water

• Ability to conduct electricity

• Ability to change color when heated

• Ability to react with oxygen to form iron oxide

Tags

NGSS.MS-PS1-2

Define physical changes.

• Physical changes involve the formation of new substances.

• Physical changes are changes that only occur in solids.

• Physical changes are reversible.

• Physical changes are changes that do not alter the chemical composition of a substance.

Give an example of a physical change.

• Melting ice into water

• Mixing salt and water to form a solution.

• Burning wood into ash.

• Boiling water into steam.

Tags

NGSS.MS-PS1-4

What are the different types of mixtures?

• homogeneous mixtures and heterogeneous mixtures

• pure substances and compounds

• solutions and suspensions

• elements and compounds

What are significant figures used for?

• To determine the units of a measurement.

• To indicate precision or accuracy of a measurement or calculation.

• To convert between different measurement systems.

• To indicate the size of a measurement.

Convert 50 cm to meters.

• 5

• 50

• 0.05

• 0.5