Which of the following is a DOUBLE-REPI ACEMENT reaction? 2NaClO_(3)(s)arrow 2NaCl(s)+3O_(2)(g) 4NaCl(s)+O_(2)(g)arrow 2Na_(2)O(s)+2Cl_(2)(g) 2NaCl(s)+3O_(2)(g)arrow 2NaClO_(3)(s) 2NaCl(aq)+CaO(aq)arrow Na_(2)O(aq)+CaCl_(2)(aq)

Which of these is a possible boiling point for a 1.0 M solution of sugar in water?The normal boiling point of water is 100^circ C -0.3^circ C 100.3^circ C 99.7^circ C

Supply a systematic name for the following hydrate compound: FeSO_(4) "dot" H_(2)O iron (II) sulfate monohydrate iron sulfur oxygen water iron sulfite monohydrate iron (II) sulfate water

The osmotic concentration of a solution is determined by the combined concentration of all square in the solution. Need help? Review these concept resources.

Carbon deposits found inside furnace tubes: A coking B carbonization B C mineral deposits D fouling (D) Question 14 Coagulation __ the negative charges of suspended solids.: A neutralizes B enhances C dissipates D accumulates

Use the following data to calculate the enthalpy of reaction (Delta H_(rxn)) of the formation of strontium chloride SrCl_(2) The enthalpy of sublimation of strontium=+164kJ/mol First ionization energy for strontium=+549kJ/mol Second ionization energy for strontium=+1064kJ/mol The enthalpy of dissociation of chlorine, Cl_(2)=+243kJ/mol The electron affinity of chlorine, Cl=-349kJ/mol Lattice energy of strontium chloride=-2150kJ/mol -4868kJ/mol -828kJ/mol -1377kJ/mol -479kJ/mol

What are the products of the acid hydrolysis of an amide? a protonated amine and an acid a neutral amine and an acid

Select True or False:The number of neutrons in all atoms of an element is the same. true false

40. An object must be immersed in quaternary ammonium for at least how many seconds to be considered sanitized? 15 30 45 60

Identify the mostacidic H(s) in the following alkyne. Select the appropriate label a, b c,ord for the acidic H(s) CH_(3)-CH_(2)-CH_(2)-Cequiv C-H d C b a d C b a

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Hydrogen sulfide is: A) Odorless B) Colorless C) Not flammable D) Red in color

Question 21 Calculate $\Delta _{r}G^{\circ }$ at $25.0^{\circ }C$ for the reaction below. $2Na(s)+2H_{2}O(l)\rightarrow 2NaOH(aq)+H_{2}(g)$ Given: $\Delta _{r}H^{\circ }=-314kJ$ and $\Delta _{r}S^{\circ }=-117J/K$ (Report your answer in units of kJ, to one decimal place, i.e xxx.x, and no units are necessary in the answer.) (Remember to include a negative sign, if necessary.)

Which type of reaction is represented by the generic equation $AB+CD\rightarrow AD+CB$ combustion decomposition single replacement double replacement

Given the equilibrium constants for the following reactions: $4Cu(s)+O_{2}(g)\rightleftharpoons 2Cu_{2}O(s),K_{1}=6.19$ $4CuO(s)\rightleftharpoons 2Cu_{2}O(s)+O_{2}(g),K_{2}=0.16$ what is K for the system $2Cu(s)+O_{2}(g)\rightleftharpoons 2CuO(s)$ equivalent to? (Report your answer to four decimal places, i.e.xxxx) $\square $

What is the pH of a solution made by combining 0.484 m $NaC_{2}H_{3}O_{2}$ with 0.042 M $HC_{2}H_{3}O_{2}$ ? The $K_{a}$ of acetic acid is $1.75\times 10^{-5}$ (Report your answer to three decimal places, i.e x.xxx)

As pure molecular solids , identify the types of intermolecular forces in each: $PH_{3}$ $\square $ HF $\square $ $CO_{2}$ $\square $

What is the molality of ethanol $(C_{2}H_{5}OH)$ in an aqueous solution that is $48.2\% $ ethanol by mass? (Report your answer to two decimal places, i.e xx.xx, and no units are necessary in the answer.)

What is the molality of ethanol $(C_{2}H_{5}OH)$ in an aqueous solution that is $48.2\% $ ethanol by mass? (Report your answer to two decimal places, ite xxxx, and no units are necessary in the answer.)

Continue to shake until no more salt will come out of the shaker. What happens to the last several crystals of salt that come out? The sodium ions dissolve while the chloride ions sink to the bottom. The salt crystals react with the water to form a new compound. All of the ions separate from each other and dissolve into the water. The salt crystals don't dissolve in the water and fall to the bottom unchanged.

Consider the reaction of magnesium silicide with water shown below: $Mg_{2}Si(s)+4H_{2}O(l)\rightarrow 2Mg(OH)_{2}(aq)+SiH_{4}(g)$ In the reaction of 13.13 g $Mg_{2}Si$ with excess water, 16.03 g $Mg(OH)_{2}$ were produced. Calculate the percent yield of $Mg(OH)_{2}$ Enter the answer rounded to 2 decimal places.Units are not necessary. Answer: $\square $