Chem Test - Chemical Equations

25 July 2022
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question
What is the net ionic equation for the reaction between aqueous solutions of LiBr and AgNO3?
answer
Ag+(aq) + Br-(aq) --> AgBr(s)
question
Which pair of substances will likely undergo a single replacement reaction?
answer
K and BaCl2
question
The balanced equation represents a chemical reaction. 2C4H10(g) + 13O2(g) --> 8CO2(g) + 10H2O(g) What type of chemical reaction is represented by the equation?
answer
combustion
question
What is the net ionic equation for the reaction between Pb(NO3)2 and HCl?
answer
Pb2+(aq) + 2Cl-(aq) --> PbCl2(s)
question
Consider this balanced chemical equation: ZnCl2(aq) + 2HBr(aq) --> ZnBr2(--) + 2HCl(--) What is the correct net ionic equation for the reaction?
answer
no reaction
question
Consider this incomplete chemical equation: Ba + CuCl2 --> What are the products of this equation?
answer
BaCl2 and Cu
question
Which of the following will form spectator ions in an aqueous solution?
answer
Cu(NO3)2
question
Which reaction will result in a bright yellow precipitate?
answer
PbI2
question
Which chemical equation is balanced?
answer
2LiOH + CO2 --> Li2CO3 + H2O
question
Consider the following balanced equation: 2AgC2H3O2 + NiCl2 --> Which substance is the oxidizing agent?
answer
2AgCl + Ni(C2H3O2)2
question
The product contains copper(II) ions; which of the following is an acceptable balanced equation for this reaction?
answer
Cu(s) + I2(g) --> CuI2(s)
question
Which substance is not soluble in water?
answer
Ca3(PO4)2
question
An aqueous solution of silver nitrate is added to an aqueous solution of iron(II) chloride. Which is the net ionic equation for the reaction that occurs?
answer
2Ag+(aq) + 2Cl-(aq) --> 2AgCl(s)
question
What coefficients are required to balance this equation? ________Fe2O3 + ________CO --> _________Fe + ________CO2
answer
1,3,2,3
question
Which equation is correctly balanced?
answer
2Na + 2H2O --> 2NaOH + H2
question
When Na2O reacts with H2O, what is produced?
answer
NaOH
question
Which equation represents a single replacement reaction that can occur?
answer
F2 + 2NaCl --> 2NaF + Cl2
question
Consider this reaction: NH3(g) + HCl(g) --> NH4Cl(s) Which type of reaction does this equation represent?
answer
synthesis
question
Which of the following is the set of correct coefficients needed to balance the combustion reaction below? ____C12H22O11 + ____O2 --> ____CO2 + ____H2O
answer
1,12,12,11
question
Which of the following diagrams represents a single displacement (replacement) reaction?
answer
⏹ --> ⏺ + ⏺ + ⏹
question
Which equation represents a single replacement reaction?
answer
H2SO4 + Mg --> H2 + MgSO4
question
Given the word equation: sodium chlorate --> sodium chloride + oxygen Which type of chemical reaction is represented by this equation?
answer
decomposition
question
Given the balanced equation representing a reaction: Zn(s) + H2SO4(aq) --> ZnSO4(aq) + H2(g) Which type of reaction is represented by this equation?
answer
single replacement
question
Which balanced equation represents a single-replacement reaction?
answer
Mg + 2AgNO3 --> Mg(NO3)2 + 2Ag
question
Which equation represents a decomposition reaction?
answer
CaCO3(s) --> CaO(s) + CO2(g)
question
Balance the equation representing the reaction below: _____H2SO4(aq) + ______KOH(aq) --> ______K2SO4(aq) + ______H2O(l) The coefficients of the balanced equation are as follows (in order)
answer
1,2,1,2
question
Which reaction below represents a correct net ionic equation?
answer
2Ca(s) + O2(g) --> 2CaO(s)
question
Given the balanced equation with an unknown compound represented by X: C6H12O6(aq) --enzyme--> 2X + 2CO2(g) Which compound is represented by X?
answer
CH3CH2OH(aq)
question
Given the incomplete equation for the combustion of ethane: 2C2H6 + 7O2 --> 4CO2 + 6_____ What is the formula of the missing product?
answer
H2O
question
Given the balanced equation: 2KClO3 --> Which of the following is the correct product of the decomposition reaction?
answer
2KCl + 3O2
question
Given the balanced equation: AgNO3(aq) + NaCl(aq) --> NaNO3(---) + AgCl(---) What is the net ionic equation for the reaction?
answer
Ag+ + Cl- --> AgCl
question
Given the reaction: X(s) + 2AlNO3(aq) --> X(NO3)2(aq) + 2Al(s) Which of the following metals is NOT possible for metal X?
answer
Mg
question
Which equation represents a double replacement reaction?
answer
LiOH + HCl --> LiCl + H2O
question
Given the reaction: HCl(aq) + LiOH(aq) --> HOH(l) + LiCl(aq) The reaction is best described as
answer
double replacement
question
In the balanced equation: H3PO4(aq) + 3NH4Cl(aq) <--> X(aq) + (NH4)3PO4(aq), the particle represented best represented by X(aq) is
answer
3HCl(aq)
question
Given the reaction: 2X + Mn2O3 --> X2O3 + 2Mn The metal represented by X in the equation could be
answer
Al
question
Which is a correctly balanced chemical equation?
answer
3CuCl2 + 2Al --> 2AlCl3 + 3Cu
question
Which reaction below is an incorrect representation of a decomposition reaction?
answer
2KClO3 --> 2KClO + O
question
When aluminum and sulfur react, which compound is produced?
answer
Al2S3