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Chemical Change
burning, rusting, growing, digesting
Physical Change
Tearing, melting, condensing, dissolving
Weak Acids…
Don’t dissociate in net ionic equations
Net ionic equations don’t include…
spectator ions
Examples of soluble spectator ions:
Na+, K+, NH4+, NO3-
H+ donor
Acid
H+ acceptor
Base
Conjugate Acid Base pairs
conjugate acid has 1 more H+ than its conjugate base
Strong vs Weak Acids
Strong acids ionize completely in aqueous solution and weak acids don’t
Examples of Strong Acids
HCl, HBr, HI, HNO3, HClO4, H2SO4 (100% dissociate)
Which is true
the stronger an acid is, the weaker its conjugate base will be
Which is true
The stronger an acid is, the stronger the base it reacts with will be
Redox
metal reacts with metal ions
Correct Identification:
Al—> Al3+ + 3E- Oxidation
2e- + Zn2+ —> Zn Reduction
Condensation
gas to liquid
Vaporization
liquid to gas
fusion (melting)
solid to liquid
sublimation
solid to gas
deposition
gas to solid
Freezing is…
exothermic