Final - Chemistry Semester 1

Elements are made of 

• many types of atoms 
• the periodic table
• one type of atom 
• molecules 

The smallest bit of matter that is pure and can't be broken down into any other smaller substance by physical or chemical means.

• particle

• compound

• element

• Patrick Star

Matter is classified into two main groups known as_______.

• solids and fluids
• pure substances and mixtures
• homogeneous and heterogeneous
• elements and compounds

Pure substances are classified into two groups known as_______________.

• elements and mixtures
• elements and compounds
• heterogeneous and homogeneous
• atoms and elements

What is a homogeneous mixture?

• a mixture that is the same throughout.
• a mixture that is made up of one type of atom.
• a mixture that is made up of one type of compound
• a mixture that cannot be separated through physical changes

A pure substance...

• is an element or a compound
• is an element or a mixture
• is a compound or a mixture
• is a mixture

Salt (NaCl) is a _________.

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

What is a compound?

• Two different elements bonded together.

• Two of the same elements bonded together.

• A mixture of different substances.

• Two substances stuck together with glue.

What kind of properties can only be observed when a substance changes into a different substance?

• physical properties
• chemical properties

Properties that can be observed without changing the identity of the substance.

• Physical
• Chemical