Chemistry Comes Alive Flashcards
(29 cards)
Matter
Anything that takes up space
Kinetic energy
The energy of motion
Potential energy
Stored energy
Atom
The smallest portion of an element that remains properties of the element
The nucleus contains
Protons and neutrons
Protons
Positively charged
Nutrients
No charge
Electrons
Negatively charged
Electron shells
Outer most electrons are involved in bonding
Ions
Neutral atom
Anions
Gained an electron
Cations
Lost an electron
Covalent bonds
Sharing of electrons
Polar molecules
Non-equal sharing of electrons
Non-polar
Equal sharing of electrons
Synthesis reaction
Smaller particles are bonded together to form larger more complex molecules
Decomposition reaction
Bones are broken in larger molecules resulting in smaller less complex molecules
Endergonic
Energy is added
Exergonic
Energy is released
Factors that influence the rate of chemical reactions
Temperature and catalyst
Inorganic compounds
Have no carbon
Acids
Increase In the hydrogen
Bases
Decrease in the hydrogen concentration
Buffers
Resist changes in pH and keeps the pH constant
