Intro to Chemistry

Which list of states of matter is in the correct order, from the phase with the slowest molecular  movement to the phase with the fastest molecular movement.

•  Solid, liquid, gas
• Solid, gas, liquid
• Liquid, gas, solid
• Gas, liquid, solid

Tags

NGSS.MS-PS1-4

What is a chemical change? 

• The atoms do nothing
• The material increases mass
• The material changes into another type of material
• The material changes form but stays the same molecule

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following best explains the relationship between molecules and atoms?

• Molecules are atoms that have no mass.
• Molecules are made up of two or more atoms.
• Atoms have smaller parts, called molecules.
• Atoms are molecules that have a charge.

Tags

NGSS.MS-PS1-1

What is a physical change?

• The elements combine to make molecules
• The material increases mass
• The material changes into another type of material
• The material changes form but stays the same molecule

The tiny core of an atom containing most of the mass of the atom is the:

• Neutron
• Nucleus
• Proton
• Electron

What are the 3 parts of an atom?

• Product, Reactant, Mass
• Positive, neutral, negative
• Proton, nucleus, electron
• Proton, neutron, electron

How many atom are in the following molecule?
 KCrO₄

• 7
• 6
• 12
• 9

Tags

NGSS.MS-PS1-1

Label as a chemical or physical change:
Boiling

• Chemical 
• Physical

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Label each change as a chemical or physical change
Hydrogen and oxygen combined to make hydrogen peroxide

• Chemical 
• Physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Label as a chemical or physical change:
Burning wood

• Chemical 
• Physical

Tags

NGSS.MS-PS1-2