Chemistry Foundations

Matter than consists of only one type atom

• Homogeneous mixture

• Compound

• Substance

• Element

Matter in which substances are not evenly mixed

• homogenous mixture
• compound
• heterogenous mixture
• element

Matter containing atoms of two or more elements  chemically bonded together

• Element
• Heterogenous Mixture
• Homogenous Mixture
• Compound

Tags

NGSS.MS-PS1-1

 What is a sign that a chemical change has occurred?

• Size
• Shape
• Smell/Odor
• State of Matter

Tags

NGSS.MS-PS1-2

Changes that form new substances and make matter change its identity are classified as __________.

• physical changes

• physical properties

• chemical changes

• changes in state of Matter

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a sign that rusting is a chemical change?

• smell
• bubbles
• change in color
• change in state of mater

Tags

NGSS.MS-PS1-2

An example of a physical change is

• rotting

• deposition

• bubble formation

• production of solid

Compounds are different than homogenous  mixtures because homogenous mixtures

• have more than one atom
• don't have a chemical bond
• don't have elements
• are evenly distributed

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes