Fall Semester Chemistry Review

What two groups can pure substances be separated into?

• elements and metals

• metals and compounds

• solids and liquids

• elements and compounds

Identify the following: sugar (C₆H₁₂O₆)

• element

• compound

• homogeneous

• heterogeneous

Tags

NGSS.HS-LS1-6

M&M's is an examples of a

• homogeneous mixture
• heterogeneous mixture

Is milk going sour a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Is Gatorade powder dissolving in water physical or chemical change?

• Physical 
• Chemical

Which of the following is an intensive property?

• Volume

• Weight

• Density

• Mass

Which of the following is an extensive property?

• melting point

• hardness

• volume

• color

Which particles make up the nucleus of an atom?

• protons and neutrons
• electrons and protons
• electrons, protons, and neutrons
• electrons and neutrons

Tags

NGSS.HS-PS1-8

The subatomic particle that determines the identity of an element.

• neutron
• proton
• electron
• outer shell

Who discovered that the nucleus contains positively charged particles called protons?

• Ernest Rutherford
• James Chadwick
• Democritus
• Niels Bohr

Tags

NGSS.HS-PS1-8