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10 Cards in this Set

  • Front
  • Back
Element
matter that is made of only 1 kind of atom
molecule
group of atoms that form the smallest unit of a substance (O2, H2O)
Compound
group of atoms with 2 or more different elements (CH4, H2O)
Atom
The smallest unit of matter
Covalent Bond
When electrons are shared between two atoms
Ionic Bond
force of attraction between oppositely charged ions
Base
compound capable of recieving a hydrogen ion from water
Acid
Compound capable of donating a hydrogen ion to water
pH
describes the acidity of a solution
Hypothesis
The predicted outcome of a scientific question; a testable explanation of observations