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31 Cards in this Set

  • Front
  • Back
H20
Water
CO2
Carbon Dioxide
HCl
Hydeochloric acid
CH3COOH
Acetic Acid Vinegar
Pb(NO3)2
Lead Nitrate
HNO3
Nitric Acid
Na(OH)
Sodium Hydroxide
Heat energy on left side of equation
endothermic
what type of energy is found atoms and molecules?
chemical energy
Chemical energy is found in ______ and ______
atoms and molecules
energy must be absorbed in a chemical reaction so what can happen?
Chemical bonds can break apart
what happens during a chemical reaction
Chemical bonds are formed and energy is released
where does energy move in a exothermic reaction
energy moves from the reactants to the surronding area
what type of reaction would a bomb blowing up be?
exothermic
what happens during an endothermic reaction?
energy is absorbed from the surronding area
H2O2------> H2+O2
decomposition
CH4+2O2-------> CO2+2H2O
Combustion
Zn+2HCl------> ZnCl2+H2
Single displacement
The reactants switch partners
double displacment
two elements forming one compound
synthesis
how are chemical bonds broken?
energy must be absorbed
During a chemical reaction chemical bonds are formed. What is released?
Energy is realased when bonds are formed
what happens to atoms in a chemical reaction
the atoms are rearranged, the atoms you started with are still there after the reaction and no atoms are created or destroyed
If you had a piece of wood how could you create a chemical change? what happens to reactants? What happens to the mass?
Light the wood on fire
The reactants produce/change into new products
Mass always stays the same
pH scale
a scale that determines how acidic a substance is
litmus paper
its an indicator that does not give specfic pH value, just detrimines whether a substance is acid or base (Red or Blue paper)
phenolpthalein
is an indicator that only detects basic solutions, does not give specific pH value. Turns hot pink in basic solutions, is clear and colorless in neutral or acidic solutions
indicator
indicates acids+bases and can give specific pH value (not always) Many different kinds. Helps you figure out pH range, specific pH and if its an acid or base
Ex: Red cabagge juice
neutralization
A reaction where a strong acid and a strong base are mixed
water and salt always occur. When acids + bases become neutral at 7 on the pH scale
what happens when acid is dissolved in water?
acid dissolving in water releases a H+ ion. Then H+ ions then bond w/ H2O molecules to form H30+ ions called hydronium ions
what 3 things happen in a reaction involving acid and a base
a. Neutrallize each other
b. production of salt and water
c. acid realeases H+ ions, base releases OH-