12:46 • M365 Copilot
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2 - Predicting Products
2021-09-08
/- Predichng Product.
Predicting Products
Name.
Date:
Block:
• Combustior • pok tots are aiviysomp, and Conly C, H, Oin compound) reacting with oxyger
•Neutralization:
• double replacement. • products are always an ionic salt (cation from the base, anion from the acid) and H20
• Synthesis and Decomposition:
• Look al tne numbers and lypes or reactants
one reaciant = decomposition
two elemental reactants = synthesis
• Consider the tollowing table Synthesis →
€ Decomposition acid non-metal oxide + water
metal oxide + water base non-metal oxide + metal oxide complex (ternary) salt binary salt
• non-metal oxide: compound with a non-metal + oxygen metal-oxide, om9oud with a metal + oxygen
NucOtre,0 complex salt: ionic compound with 3+ elements (i.e. has a polyatomic ion binany sai: onic compound with 2 elemente -CơarUul
s'te cive chang" NaCl, Caßra
• to correctly predict formulas for oxides/acids, need to consider oxidation states • sum of oxidation numbers for a compound is 0
• oxvoen is usualliv - hvorogen is usualliv +1: lons have oxidation state = lon charae
• Oxidation numbers in polyatomic ions must sum to the ion charge
Examples: Determine the oxidation numbers for the underlined element(s) in each compound
B) HPOY POY A) H2COa (C) Fe(NOs)2
C: 0: 3(-2) =-6
:. C=+4
-3
:.P= +5
Examples: Classify each reaction based on the reactants. Predict the products. Balance the equation
B) 2. CH,OH +902 → 6C02 + 8H20 A) _Ba+_Cle- BaCla Reaction type: COMBUSTION
Reaction type: SYNiHeslS
metal + non-metal → binary arganic + 02 → Cickinge + mater Bat? ci" c) 2 H.PO +3 Ca(OH) - Ca(P04), + 6H,0 D) 2 AIBr- 2 AL + 3Br2
Reaction type: DECOMPOSITION Reaction type: NEUTRALIZATION acid t base → salt + H20
binaty → metal + methe Catr POЙ3
F) _Fea(SO+)s → Fe203 티)_v0.+5 H80- 2V(에), +3503
Reaction type: SYNTHESIS Reaction type: DECOMPOSITION
metal + non-metul compux → oxide metal + water → base oxide
Fet3 07 5*602 Vt OH V20s
S0y2 v5.* +6+-8=-2
G) Diphosphorous pentoxide gas and water are produced from the decomposition of an acid.
2 H3PO4 → P205 + 3 H20
(decomposition)
l) An at-home method for removing dark silver sulfide tarnish from jewelry involves putting it in conta ith a piece of aluminum foil, which reacts to leave pure silver on the surface of the jewelr 3Ag2S +2AL → 6A9 + AL,S3
(single replacement -- check activiry series!)
") Milk of magnesia (magnesium hydroxide) tablets are taken to neutralize stomach acid (hydrochloric acid) in cases of heartburn. Mg(OH), + 2HCL → 2H20 + MgClz (neutralization)