Please answer all for a like!!
Posted: Wed Apr 27, 2022 6:55 am
Please answer all for a like!!
Which one of the following mixtures would NOT produce an insoluble product? O a. Al(NO3)3(aq) + NaOH(aq) O b. Pb(C2H4O2)2(aq) + NaCl(aq) – ) O c. SrCl2(aq) + NaNO3(aq) O d. (NH4)2CrO4(aq) + NaBr(aq) O e. (NH4)2CO3 (aq) + CaBrz(aq) +
Consider the following reaction: 10 KNO3(s) + 8 C(s) + 3 S(s) — 2K2CO3(s) + 3 K2SO4(s) + 6 CO2(0)+5 N29) If you mix 1.00 kg of KNO3 with 1.00 kg of sulfur in the presence of excess carbon and the reaction proceeds with 85% yield, what mass of solid products (.e., K2CO3 plus K2SO4) will you make? O a. 1.05 kg O b. 1.26 kg O c. 2.00 kg O d. 6729 O e. 791 g ure
What should be the speed of a beam of particles of mass 1.025x1027 g in order to have a wavelength of 6.37 nm? a. 1.25 x 101 m/s O b. 1.02 x 105 m/s O c. 9.89 x 109 m/s O d. 9.66 x 104 m/s O e. 1.18 x 105 m/s
Before refrigeration became available, the preservation of eggs was done by dipping them in a concentrated aqueous solution of sodium orthosilicate, Na Sios, made according to the step (0) in the box. The soft eggshell of calcium carbonate, porous to air, is then replaced in step (ii) by a tough impervious layer of calcium silicate. Which one choice CORRECTLY describes one of these reactions? i. SiO2 (s) + 2 Na2CO3(0) → Na Siod(s) + 2 CO2(9) ii. 2 CaCO3(s) + NaqsiO4(ag) - Ca SiO4(s) + 2 Na2CO3(aq) O a. None of these reactions is a redox reaction. O b. Si is reduced in reaction (1). O c. Cis oxidized in reaction (). d. SiO2 is the oxidizing agent in reaction ().
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Consider the following reaction: 10 KNO3(s) + 8 C(s) + 3 S(s) — 2K2CO3(s) + 3 K2SO4(s) + 6 CO2(0)+5 N29) If you mix 1.00 kg of KNO3 with 1.00 kg of sulfur in the presence of excess carbon and the reaction proceeds with 85% yield, what mass of solid products (.e., K2CO3 plus K2SO4) will you make? O a. 1.05 kg O b. 1.26 kg O c. 2.00 kg O d. 6729 O e. 791 g ure
What should be the speed of a beam of particles of mass 1.025x1027 g in order to have a wavelength of 6.37 nm? a. 1.25 x 101 m/s O b. 1.02 x 105 m/s O c. 9.89 x 109 m/s O d. 9.66 x 104 m/s O e. 1.18 x 105 m/s
Before refrigeration became available, the preservation of eggs was done by dipping them in a concentrated aqueous solution of sodium orthosilicate, Na Sios, made according to the step (0) in the box. The soft eggshell of calcium carbonate, porous to air, is then replaced in step (ii) by a tough impervious layer of calcium silicate. Which one choice CORRECTLY describes one of these reactions? i. SiO2 (s) + 2 Na2CO3(0) → Na Siod(s) + 2 CO2(9) ii. 2 CaCO3(s) + NaqsiO4(ag) - Ca SiO4(s) + 2 Na2CO3(aq) O a. None of these reactions is a redox reaction. O b. Si is reduced in reaction (1). O c. Cis oxidized in reaction (). d. SiO2 is the oxidizing agent in reaction ().