Ch 2.2 Voc Env Sci

anything that has mass and takes up space

• Organic Compound
• Ion
• Matter
• Isotope

pure substance made of only one kind of atom

• Molecule
• Compound
• Element
• Energy

substance made up of atoms of two or more different elements joined by chemical bonds

• Compound
• Molecule
• Matter
• Isotope

the basic unit of a chemical element

• Molecule
• Compound
• Atom
• Ion

atoms of the same element that have different numbers of neutrons

• Isotope
• Ion
• Compound
• Molecule

a group of atoms bonded together

• Ions
• Isotopes
• Molecule
• Data

an atom or group of atoms that has a positive or negative charge (gained or lost electrons)

• Ion
• Isotope
• Molecule
• Organic Compound

scale that is used to measure acidity

• Triple Beam Balance
• Scoville Scale
• pH
• Organic Compound

compounds that contain carbon

• Isotopes
• Ions
• Molecules
• Organic Compounds

alteration in a substance that does not change its identity

• Chemical Change
• Second Law of Thermodynamics
• Physical Change
• First Law of Thermodynamics