Warm-Up
1.Complete the sentence.
A chemic reaction is a chemical change in a structure
a. based on electrons
b. rearrangement
-breaking bonds
- forming raw ones
Examples of chemical changes:
a.change of color
b.smoke
c.odor
d.
explosion
Diatomic Elements- You put a 2 as the deficient
Br I N C I H O F
Example: Br2
adept electric switch Reaction- one element replaces another in a heighten
Ex: A + BX ? B + AX
Decomposition Reaction- commencement with one compound breaking apart into two or more compounds / elements
Ex: AB ? A + B
Double Replacement Reaction- two elements replace another in a compound
Ex: AX + BY ? AY + BX
ions switching partners means that confirming always goes with contradict
ex: 2NaCl + H2SO4 ? Na2SO4 + 2HCl
Synthesis Reaction-
A + B ? AB
2Al (s) + N2(g) ? 2AlN (s)
adult 2 / # that you are balancing with coefficient
little 2 subscript
Neutralization Reaction - specialized double replacement
point + Base ? Salt + Water
Ex: HNO3 + NaOH ? NaNO3 + H2O
N goes with N and H goes with H
Positive always goes before negative
Combustion of Hydrocarbons Reaction-
CxHy + O2 ? CO2 + H2O
Ex: CH4 + O2 ? CO2 + H2O
**When dealings hydrocarbons, it is always going to be ?CO2 + H2O
Reactions in Aqueous Solutions:
Net ionic equations-
Ionic compounds (aqueous) = separate ions
Ex:
-NaCl (aq)
Na(aq / positive) + Cl (aq / negative )
-Na2 SO4
2Na2 (positive) + SO4 (2- / negative)
-Mg3(PO4)2 (aq)
3Mg (2+) + 2PO4 (3-)
Terms:
Soluble = in resultant
Insoluble = solid
REVIEW:
Nickel
28 electrons
4 energy levels
know how to find sublevels and what they are
to find valance board electrons highest energy level = 4
short cut on how to write it
when naming isotopes you have to put the physical body AND the destiny number
ex: Carbon -14
**check notes
14C protons-6 elecrons-6 neutrons-8
7
know how to name properties about an element. Like Iridium...If you want to get a bounteous essay, order it on our website: Ordercustompaper.com
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