Module 4: Chapter 4: Properties of Materials, Chemical Reactions, and Heat Assignment
Chapter 4: Chapter 4: Properties of Materials, Chemical Reactions, and Heat Assignment (worth 10 points maximum)
This assignment aligns with the following Module 4: Chapter 4: Chapter 4: Properties of Materials, Chemical Reactions, and Heat objectives:
- Write and balance chemical equations (CLO7)
- Define three common types of chemical reactions (precipitation, acid-base, and oxidation-reduction) (CLO6)
- Classify chemical reactions as one of these three types given appropriate descriptions or chemical equations (CLO6)(CLO7)
- Identify common acids and bases (CLO6)(CLO8)
Answer the following questions and be sure to show your work for credit!!
Balance the
following equations:
(a) PCl5(s)+H2O(l)⟶POCl3(l)+HCl(aq)
(b) Cu(s)+HNO3(aq)⟶Cu(NO3)2(aq)+H2O(l)+NO(g)
(c) H2(g)+I2(s)⟶HI(s)
(d) Fe(s)+O2(g)⟶Fe2O3(s)
(e) Na(s)+H2O(l)⟶NaOH(aq)+H2(g)
(f) (NH4)2Cr2O7(s)⟶Cr2O3(s)+N2(g)+H2O(g
(g) P4(s)+Cl2(g)⟶PCl3(l)
(h) PtCl4(s)⟶Pt(s)+Cl2(g)
Indicate what
type, or types, of reaction each of the following represents:
(a) Ca(s)+Br2(l)⟶CaBr2(s)
(b) Ca(OH)2(aq)+2HBr(aq)⟶CaBr2(aq)+2H2O(l)
(c) C6H12(l)+9O2(g)⟶6CO2(g)+6H2O(g)
Classify the following as acid-base reactions or oxidation-reduction reactions:
(a) Na2S(aq)+2HCl(aq)⟶2NaCl(aq)+H2S(g)
(b) 2Na(s)+2HCl(aq)⟶2NaCl(aq)+H2(g)
(c) Mg(s)+Cl2(g)⟶MgCl2(s)
(d) MgO(s)+2HCl(aq)⟶MgCl2(aq)+H2O(l)
(e) K3P(s)+2O2(g)⟶K3PO4(s)
(f) 3KOH(aq)+H3PO4(aq)⟶K3PO4(aq)+3H2O(l)
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