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question 12 which substance is the limiting reactant (see
photo)
question 13 the temperature change (see...
12.) Which of the following factors influence the rate of a reaction? A) Temperature B) Reactant...
12.) Which of the following factors influence the rate of a reaction? A) Temperature B) Reactant concentration C) A catalyst D) Temperature, reactant concentration, and a catalyst 13.) A fast reaction rate for a chemical reaction is dependent on: A) having a large activation energy B) having a small activation energy C) being exothermic D) being endothermic 14.)) A catalyst is A) a substance that decreases the energy of the products. B) a product in a chemical reaction. c) a...
Question 13 which of the following is a strong electrolyte (see photo) Spring 2019 13. Which...
Question 13 which of the following is a strong electrolyte
(see photo)
Spring 2019 13. Which of the following compounds is a strong electrolyte in aqueous solution? a. HC1O b. PbC 14. Which solution contains the smallest number of moles of chloride ions a. 30.00 mL of 0.100M CaCl c. 10.0 mL of 0.100M BaCl b. 25.00 mL of 0.10OM KCI d. 10.0 mL of 0.100M FeCl 15. Which of the following substances is likely to be soluble in water?...
Question 12 4 pts 12. Which one of the following substances is an AQUEOUS REACTANT in...
Question 12 4 pts 12. Which one of the following substances is an AQUEOUS REACTANT in the following reaction? 2Al(s) + 6 HCl(aq) -> 2 AICI3(aq) + 3H2(g) + 1049 kJ b. HCI C. AICI: d. H2 Question 13 4 pts
check each statement about the temperature, check each item that is a unit of pressure, which...
check each statement about the temperature, check each item that is
a unit of pressure, which of the following pairs of substances are
held together by hudrogen bonds, multiple choice, name the phase
16. Check each true statement about the temperature 0 K. The K stands for kilo. The K stands for Kelvin. This is a temperature that is suitable for biological processes. It is absolute zero. This temperature is the middle of the Kelvin scale. This is the coldest...
15. The mixing of which pair of reactants will result in a precipitation reaction? CsI(aq)...
15. The mixing of which pair of reactants will result in a precipitation reaction? CsI(aq) + NaOH(aq) HCl(aq) + Ca(OH)2(aq) K2SO4(aq) + Hg2(NO3)2(aq) NaNO3(aq) + NH4Cl(aq) 16. Which of the following is a precipitation reaction? Zn(s) + 2 AgNO3(aq) 2 Ag(s) + Zn(NO3)2(aq) NaCl(aq) + LiI(aq) NaI(aq) + LiCl(aq) 2 KI(aq) + Hg2(NO3)2(aq) Hg2I2(s) + 2 KNO3(aq) HI(aq) + NaOH(aq) NaI(aq) + H2O(l) None of these are precipitation reactions. 17. Which...
Pressure [Pa] QUESTION 5 Sav Which line represents a process for which PVaconstant? 12 10 A...
Pressure [Pa] QUESTION 5 Sav Which line represents a process for which PVaconstant? 12 10 A 6 2 0 0 1 2 3 5 Volume [m3] ANSWI hmit to sme and submit. Click Save All Answers to save all ansuers parenthesis. 1. An insulated piston-cylinder device initially contains 10kg of saturated liquid water at 20°C. An electrical resistor embedded in the wall is turned on until the volume of the water triples, but its pressure remains constant. The piston moves...
in need of everything, take your time 11. 13 Consider the following reaction 2 NO, --->...
in need of everything, take your time
11. 13 Consider the following reaction 2 NO, ---> 2N, + 50, The number of moles of o: obtained from 12 moles of N, O, (a) 30 (b) 4.8 (c) 60 (e) none of the above. (d) 6 Consider the reaction 2 N, 50, ---> 2 N, O, If 4 moles of nitrogen is mixed with 96 g of oxygen, what is the limiting reagent? a) , (b) N (c) there is no...
mixed. (1) 9.110.274 moles of a substance weighs 62.5 g. what is the molar mass of...
mixed. (1) 9.110.274 moles of a substance weighs 62.5 g. what is the molar mass of the substance, in units of g/mol? (1) 228 g/mol (2) 17.1 g/mol (3) 4.38 x 10 g/mol (4) 62.8 g/mol 10. Identify the correct net ionic equation for the reaction that occurs when solutions of Ba(CIO) and KSOiare (1) Ba?"(aq) + SO2(aq) +BaSO4(s) (2) 2K (aq) + 2CIO (aq) - K(CIO)a(s) (3) Kla) ClOc(aq) - KCIO (S) (4) Bal(aq) + (aq) + SOP(q)- kBaSO4(6)...
< 9 of 13 Review Constants Periodic Table Part A A calorimeter contains 28.0 mL of...
< 9 of 13 Review Constants Periodic Table Part A A calorimeter contains 28.0 mL of water at 11.0 °C. When 250 g of X (a substance with a molar mass of 60.0 g/mol) is added, it dissolves via the reaction X(s) + H2O(1) X(aq) and the temperature of the solution increases to 30.0 °C. Calculate the enthalpy change, AH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that...
D Question 4 5 pts 2b) There are 0.10 moles of N2O4 and 0.20 moles of...
D Question 4 5 pts 2b) There are 0.10 moles of N2O4 and 0.20 moles of NO 2 present in a 2.0 L container which may react according to: N2O4(g) = 2N028) Kp = 11 What is the value of Qp for the initial gas mixture? a. 4.0 b. 0.20 c. 0.40 d.5.0 . a. b. Consider the following equilibrium systems. Which direction will the reactions shift (reactants or products) when cooled? 200g + O2(g) = 2CO2(g) H2e+12(e)=2HI® H2(g) +126)...
12.) Which of the following factors influence the rate of a reaction? A) Temperature B) Reactant concentration C) A catalyst D) Temperature, reactant concentration, and a catalyst 13.) A fast reaction rate for a chemical reaction is dependent on: A) having a large activation energy B) having a small activation energy C) being exothermic D) being endothermic 14.)) A catalyst is A) a substance that decreases the energy of the products. B) a product in a chemical reaction. c) a...
Question 13 which of the following is a strong electrolyte
(see photo)
Spring 2019 13. Which of the following compounds is a strong electrolyte in aqueous solution? a. HC1O b. PbC 14. Which solution contains the smallest number of moles of chloride ions a. 30.00 mL of 0.100M CaCl c. 10.0 mL of 0.100M BaCl b. 25.00 mL of 0.10OM KCI d. 10.0 mL of 0.100M FeCl 15. Which of the following substances is likely to be soluble in water?...
Question 12 4 pts 12. Which one of the following substances is an AQUEOUS REACTANT in the following reaction? 2Al(s) + 6 HCl(aq) -> 2 AICI3(aq) + 3H2(g) + 1049 kJ b. HCI C. AICI: d. H2 Question 13 4 pts
check each statement about the temperature, check each item that is
a unit of pressure, which of the following pairs of substances are
held together by hudrogen bonds, multiple choice, name the phase
16. Check each true statement about the temperature 0 K. The K stands for kilo. The K stands for Kelvin. This is a temperature that is suitable for biological processes. It is absolute zero. This temperature is the middle of the Kelvin scale. This is the coldest...
Pressure [Pa] QUESTION 5 Sav Which line represents a process for which PVaconstant? 12 10 A 6 2 0 0 1 2 3 5 Volume [m3] ANSWI hmit to sme and submit. Click Save All Answers to save all ansuers parenthesis. 1. An insulated piston-cylinder device initially contains 10kg of saturated liquid water at 20°C. An electrical resistor embedded in the wall is turned on until the volume of the water triples, but its pressure remains constant. The piston moves...
in need of everything, take your time
11. 13 Consider the following reaction 2 NO, ---> 2N, + 50, The number of moles of o: obtained from 12 moles of N, O, (a) 30 (b) 4.8 (c) 60 (e) none of the above. (d) 6 Consider the reaction 2 N, 50, ---> 2 N, O, If 4 moles of nitrogen is mixed with 96 g of oxygen, what is the limiting reagent? a) , (b) N (c) there is no...
mixed. (1) 9.110.274 moles of a substance weighs 62.5 g. what is the molar mass of the substance, in units of g/mol? (1) 228 g/mol (2) 17.1 g/mol (3) 4.38 x 10 g/mol (4) 62.8 g/mol 10. Identify the correct net ionic equation for the reaction that occurs when solutions of Ba(CIO) and KSOiare (1) Ba?"(aq) + SO2(aq) +BaSO4(s) (2) 2K (aq) + 2CIO (aq) - K(CIO)a(s) (3) Kla) ClOc(aq) - KCIO (S) (4) Bal(aq) + (aq) + SOP(q)- kBaSO4(6)...
< 9 of 13 Review Constants Periodic Table Part A A calorimeter contains 28.0 mL of water at 11.0 °C. When 250 g of X (a substance with a molar mass of 60.0 g/mol) is added, it dissolves via the reaction X(s) + H2O(1) X(aq) and the temperature of the solution increases to 30.0 °C. Calculate the enthalpy change, AH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that...
D Question 4 5 pts 2b) There are 0.10 moles of N2O4 and 0.20 moles of NO 2 present in a 2.0 L container which may react according to: N2O4(g) = 2N028) Kp = 11 What is the value of Qp for the initial gas mixture? a. 4.0 b. 0.20 c. 0.40 d.5.0 . a. b. Consider the following equilibrium systems. Which direction will the reactions shift (reactants or products) when cooled? 200g + O2(g) = 2CO2(g) H2e+12(e)=2HI® H2(g) +126)...
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