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Chemistry Ch2 test

Chemical Reactions

QuestionAnswer
Balance: H3PO4 + HCL --> PCl5 + H2O Balanced: H3PO4 + 5HCl --> PCl5 + 4H2O
Balance: CaC2 + H2O --> C2H2 + Ca(OH)2 Balanced: CaC2 + 2H2O --> C2H2 + Ca(OH)2
Balance: Fe(OH)3 --> Fe2O3 + H2O Balanced: 2Fe(OH)3 --> Fe2O3 + 3H2O
Chlorine gas and aluminum metal react in a synthesis reaction. (Word and chemical equation) Chlorine + Aluminum --> Aluminum Chloride Cl2(g) + Al2(s) --> 2AlCl
3 observations that suggest a chemical reaction has occurred. Color change, precipitate forms, light energy given off.
Aqueous magnesium hydroxide, commonly called milk of magnesia, is often used to neutralize stomach acid, HCl. Magnesium hydroxide + Hydrochloric acid --> Magnesium chloride + water MgOH + HCl --> MgCl + HOH MgOH + HCl --> MgCl + H2O
State the Law of Conservation of Mass The mass of the reactants is equal to the mass of the products. The chemical equation MUST be balanced. Matter can not be created or destroyed.
Name the four main types of chemical reactions Single displacement, double displacement, synthesis, decomposition
This reaction involves two simple substances combining to form a more complex substance Synthesis Reaction
This reaction involves a complex substance being broken down into simpler substances Decomposition Reaction
This reaction involves an uncombined element replacing an element in a compound Single Displacement
This reaction involves two atoms in compounds switching places Double Displacement
Which of the following single displacement reactions will NOT occur? A) Ba(s) + AlPO4(aq)--> B) K(s) + HCl(aq) --> C) Mg(s) + CuSO4(aq)--> D) Ca(s) + H20(aq) --> E) Ni(s) + NaCO3 --> E
Which salt will dissolve in water? A) (NH4)2CO3 B) BaSO4 C) AgCl D) Cu(OH)2 E) Zn3(PO4)2 A
Created by: kyledaniels
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