ISAT Chemistry Review 2

1
ISAT Chemistry Review 2
2
Chemical Reaction

• Chemical Reaction a process in which one or more
  substances are changed into different substances
• Sodium Chlorine Salt

3
With Every Chemical Reaction

• Something has changed
• Old chemical bonds break
• New chemical bonds form
• Use your keen senses to observe

4
Results of Bonding

• Molecules neutral particles formed as a result
  of sharing or exchanging electrons

5
Ionic Bonds

• They have the same number of electrons and
  protons
• But elements want to fill their outermost energy
  level
• So they gain or lose electrons to do so

Na
Cl
6
Covalent Bonds

• Covalent bond the force of attraction between
  atoms sharing electrons

7

• pH is a way to measure reactivity
• potential hydrogen

8

• Acid A solution that has an excess of H ions.
  pH (0-6).
• Base A solution that has an excess of OH- ions.
  pH (8-14).
• Neutral A solution that has a pH of 7. It is
  neither acidic nor basic. ExWater

9
Temperature

• Temperature Rate of the reaction
• Temperature Rate of the reaction

10
Concentration

• Concentration Rate of the reaction
• Concentration Rate of the reaction

11
Surface Area

• Surface Area Rate of the reaction
• Surface Area Rate of the reaction

12
Catalyst material that speed up a reaction but
do not react

• Catalyst Rate of the reaction
• Catalyst Rate of the reaction