Which compound is insoluble in water? a. KNO3 b. Pb(NO3)2 c. Na2SO4 d. PbSO4 e. MgCl2

Expert Solution

queen_honey_blossom answered 2 years ago

Write: Complete, complete ionic equation, and net ionic equation a) Pb(NO3)2(aq) + Na2SO4 ------> PbSO4(s) +...

Write: Complete, complete ionic equation, and net ionic equation a) Pb(NO3)2(aq) + Na2SO4 ------> PbSO4(s) + 2NaNO3(aq) Pb2+ (aq) + 2NO3^2- (aq) + 2Na+(aq) + SO4^2-(aq) -------> PbSO4(s) + 2Na+ (aq) + 2NO3-(aq) Pb2+ (aq) + SO4^2-(aq) -------> PbSO4(s) b) No reaction c) FeCl2(aq) + Na2S (aq) --------> FeS(s) + 2NaCl(aq) Fe2+(aq) + 2Cl-(aq) + 2Na+(aq) + S^2-(aq) -------> FeS(s) + 2Na+(aq) + 2Cl-(aq) Fe2+(aq) + S^2-(aq) -------> FeS(s)

Predict whether the compounds are soluble or insoluble in water. CuBr2 NH4Br Pb(NO3)3

Predict whether the compounds are soluble or insoluble in water. Soluble Insoluble CuBr2 NH4Br Pb(NO3)3 Agl NICO3 BaSO4

Insoluble PbBr2(s) precipitates when solutions of Pb(NO3)2(aq) and NaBr(aq) are mixed. Pb(NO3)2(aq) + 2 NaBr(aq) →...

Insoluble PbBr2(s) precipitates when solutions of Pb(NO3)2(aq) and NaBr(aq) are mixed. Pb(NO3)2(aq) + 2 NaBr(aq) → PbBr2(s) + 2 NaNO3(aq) ΔrH° = ? To measure the enthalpy change, 200. mL of 0.75 M Pb(NO3)2(aq) and 200. mL of 1.5 M NaBr(aq) are mixed in a coffee-cup calorimeter. The temperature of the mixture rises by 2.44 °C. Calculate the enthalpy change for the precipitation of PbBr2(s), in kJ/mol. (Assume the density of the solution is 1.0 g/mL, and its specific heat...

Give the names and charges of the cation and anion in each of the following compounds: (a) CaO, (b) Na2SO4, (c) KClO4, (d) Fe(NO3)2, (e) Cr(OH)3.

Which of the following solutions cannot conduct electricity? a) Sugar in water b) NaCl in water c) MgCl2 in water d) KCl in water

Consider the cross: A/a; b/b; C/c; D/d; E/e x A/a; B/b; c/c; D/d; e/e a) what...

Consider the cross: A/a; b/b; C/c; D/d; E/e x A/a; B/b; c/c; D/d; e/e a) what proportion of the progeny will phenotypically resemble the first parent? b) what proportion of the progeny will genotypically resemble neither parent?

Water is a/an _______ a) Element b) Compound c) Pure substance d) Mixture

Water is _______ a) An element b) A compound c) A pure substance d) A mixture

When the ionic compound Ca(NO3)2 dissociates in water the equation is

When the ionic compound Ca(NO3)2 dissociates in water the equation is $$ \begin{aligned} &\mathrm{Ca}\left(\mathrm{NO}_{3}\right)_{2} \text { (s) } \rightarrow \mathrm{Ca}^{2+} \text { (aq) }+\mathrm{N}_{2} \text { (g) }+3 \mathrm{O}_{2} \text { (g) } \\ &\mathrm{Ca}\left(\mathrm{NO}_{3}\right)_{2} \text { (s) } \rightarrow \mathrm{Ca}^{2+}(\mathrm{aq})+2 \mathrm{~N}^{3-}(\mathrm{aq})+6 \mathrm{O}^{2-}(\mathrm{aq}) \\ &\mathrm{Ca}\left(\mathrm{NO}_{3}\right)_{2}(\mathrm{~s}) \rightarrow \mathrm{Ca}^{2+}(\mathrm{aq})+2 \mathrm{NO}_{3}^{-}(\mathrm{aq}) \\ &\mathrm{Ca}\left(\mathrm{NO}_{3}\right)_{2}(\mathrm{~s}) \rightarrow \mathrm{Ca}^{2+}(\mathrm{aq})+\left(\mathrm{NO}_{3}\right)_{2}^{2-} \text { (aq) } \end{aligned} $$

phloem sap includes: a) horomes b) sucrose c) both a and b d) water e) all...

phloem sap includes: a) horomes b) sucrose c) both a and b d) water e) all are correct

Given the following knowledge base: a <- b^c. b <- d^e. b <- g^e. c <-...

Given the following knowledge base: a <- b^c. b <- d^e. b <- g^e. c <- e. d. e. ƒ <- a^g. Which of the following would be the trace of resolved atoms assuming a bottoms-up proof procedure? Select one: a. {a,b,c,e,g} b. {a,b,c,e,d} c. {g,e,b,e,c,a} d. None of these options Constraint Satisfaction Problem (CSP) is consists of a set of _________________. Select one: a. Variables, heuristics, and solutions b. Variables, domains, and backtracking c. Variables, domains, and constraints d....

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