(a)
Interpretation:
The given statement is either true or false should be identified.
Concept introduction:
(b)
Interpretation:
The given statement is either true or false should be identified.
Concept introduction:
Chemical equilibrium is the state of the chemical reaction in which both reactants and products are present in concentrations which have no further tendency to change with time, so that there is no observable change in the properties of the system.
(c)
Interpretation:
The given statement is either true or false should be identified.
Concept introduction:
Chemical equilibrium is the state of the chemical reaction in which both reactants and products are present in concentrations which have no further tendency to change with time, so that there is no observable change in the properties of the system.
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Chapter 3 Solutions
Chemistry & Chemical Reactivity
- The carbon dioxide exhaled in the breath of astronauts is often removed from the spacecraft by reaction with lithium hydroxide 2LiOH(s)+CO2(g)Li2CO3(s)+H2O(l) Estimate the grams of lithium hydroxide required per astronaut per day. Assume that each astronaut requires 2.50 103 kcal of energy per day. Further assume that this energy can be equated to the heat of combustion of a quantity of glucose, C6H12O6, to CO2(g) and H2O(l). From the amount of glucose required to give 2.50 103 kcal of heat, calculate the amount of CO2 produced and hence the amount of LiOH required. The H for glucose(s) is 1273 kJ/mol.arrow_forwardWhat is Hrxn for reaction of iron(III) oxide and carbon monoxide to give iron metal and carbon dioxide gas? Use the following reactions: 4Fe(s)+3O2(g)2Fe2O3(s)H=1648.4kJ4CO(g)+O2(g)2CO3(g)H=565.98kJarrow_forwardMany over-the-counter antacid tablets are now formulated using calcium carbonate as the active ingredient, which enables such tablets to also be used as dietary calcium supplements. As an antacid for gastric hyperacidity, calcium carbonate reacts by combining with hydrochloric acid found in the stomach, producing a solution of calcium chloride, converting the stomach acid to water, and releasing carbon dioxide gas (which the person suffering from stomach problems may feel as a “burp”). Write the unbalanced chemical equation for this process.arrow_forward
- Q9 solubility products for the following compounds: (a) SrF, 6.3 x 10 g/L, (b) Ag:PO1. 5.7 x 10 From the solubility data given in your Appendix from your textbook, cafculate the PL.arrow_forwardPermanganate Ions are reacted with Iron(II) in the presence of an acid to produce Manganese(II) ions, Iron(III) ions, and water. Write the balanced chemical equation for this process.arrow_forwardA key step in balancing chemical equations is correctly identifyingthe formulas of the reactants and products. For example,consider the reaction between calcium oxide, CaO(s),and H2O(l) to form aqueous calcium hydroxide. (a) Write abalanced chemical equation for this combination reaction,having correctly identified the product as Ca(OH)2(aq).(b) Is it possible to balance the equation if you incorrectly identifythe product as CaOH(aq), and if so, what is the equation?arrow_forward
- Consider the reactions described below. Classify each as one of the four categories of reactions (synthesis, decomposition, single displacement, double displacement). (A) Aqueous sodium iodide mixes with aqueous silver nitrate to form solid silver iodide and aqueous sodium nitrate. (B) Trinitrotoluene (TNT, C7H5N3O6) explodes violently, producing carbon monoxide, elemental carbon (soot), water vapor, and nitrogen gas. (C) Zinc metal rusts in the presence of oxygen to form zinc(II) oxide.arrow_forward- Classify each reaction in as many ways as possible. (a) 2 Al(s) + 3 Cu(NO3)2(aq) – 2 Al(NO3)3(aq) + 3Cu(s) (b) HBr(aq) + KHSO3(aq) H2O(1) + SO2(g) + NaBr(aq) → H,S(g) + 2Nal(aq) (а) К,СО,(ag) + FeBrz(aq) — FeCO,(6) + 2KBr(ag) (c) 2 HI(aq) + Na,S(aq)arrow_forwardAs shown in the following Figure, an aqueous solution of Nal is poured into an aqueous solution of Pb(NO3)2 which results in the formation of a yellow precipitate. Assuming stoichiometric amounts of Nal and Pb(NO3)2 are reacted, give the chemical formula of the yellow precipitate and the chemical formula of all molecules and/or ions that are present in the solution (You may use the solubility matrix to answer this question). (b)arrow_forward
- A student has mixed the solutions of lead (II) nitrate and potassium iodide.(i) What was the colour of the precipitate formed? Can you name the compound?(ii) Write the balanced chemical equation for this reaction.(iii) What type of reaction is it?arrow_forwarda Choose an example of a displacement reaction. О 2K() + 2H,0() - 2КОН(ад) + Н, (9) O 3RBOH(ag) + H3PO,(ag) + Rb;PO,(aq) + 3H;0(1) O Zn(NOs)2(ag) + H2S(aq) → ZnS(s) + 2HNO3 (aq) O 2H2 (9) + O2(9) + 2H30(1)arrow_forwardThe compound magnesium acetate, Mg(CH3COO)2 is soluble in water. Write the net ionic equation for the dissociation reaction that occurs when solid magnesium acetate dissolves in water:Be sure to specify states such as (aq) or (s). The compound iron(II) nitrate, Fe(NO3)2 is soluble in water. Write the net ionic equation for the dissociation reaction that occurs when solid iron(II) nitrate dissolves in water:Be sure to specify states such as (aq) or (s).arrow_forward
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