Pre-AP Chemistry Midterm

What is made of one type of atom?

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

What is a molecule that contains at least two different elements that are chemically combined in a fixed ratio?

• Element

• Compound

• Homogeneous MIxture

• Heterogeneous Mixture

Tags

NGSS.MS-PS1-1

What is not uniform in composition and differences can be seen?

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

What is uniform across in composition and is also known as a solution?

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

Chlorine gas (Cl2) is

• an element

• a compound

• a homogeneous mixture

• a heterogeneous mixture

Glucose (C6H12O6) is

• an element

• a compound

• a heterogeneous mixture

• a homogeneous mixture

Tags

NGSS.HS-LS1-6

Brass and steel are

• elements

• compounds

• homogeneous mixtures

• heterogeneous mixtures

Sand, iron, and salt all mixed together creates

• an element

• a compound

• a homogenous mixture

• a heterogenous mixture

Match the following

• Physical Method

• Evaporation

• Physical Method

• Evaporation

• Physical Method

• Distillation

• Not a Physical Method

• Decanting

• Physical Method

• Electrolysis

Who stated that matter is composed of tiny, invisible particles called atoms?

• John Dalton

• Democritus

• Louis de Broglie

• Ernest Rutherford

Tags

NGSS.HS-PS1-7