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Chem Concepts Pre.Lab.pdf (page 2 of 2) ﹀ Q Search 7. Balance the following chemical equation....
Balance the following chemical equations. Write the word "Balanced" if the equation is already balanced. a)...
Balance the following chemical equations. Write the word "Balanced" if the equation is already balanced. a) 2 H2(g) + O2(g) → 2 H20(1) b) 2NH3(g) + H2SO4(90) → (NH4)2SO4(94) Decomposition Reactions a) 2H2O2(0) → 2 H2O(l) + O2(g) b) "Balanced" CaCO3(s) → "Balanced" CaQ/s) + "Balanced" CO2(g) Single Displacement Reactions a) Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) b) 2Nas) + 2H2O(1) ► 2NaOH(aq) + H2(g double Displacement Reactions a) AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) “Balanced" b) H2SO4(aq)...
QUESTION 1 Balance the equation: Al203 02 Al QUESTION 2 Balance the equation Hа0 CO2 O2...
QUESTION 1 Balance the equation: Al203 02 Al QUESTION 2 Balance the equation Hа0 CO2 O2 -> C2H6 QUESTION 3 Balance the equation: Caso4 Al(OH)3 Caа(ОН)2 Al2(S04)3 + QUESTION 4 Which chemical equation is properly balanced? 2 SO2 O2 2 H30 -2 H2SO4 so2+O2+ H20> H2$O4 So2+O2+4 H202 H2SO4 4 SO O24 H20-4 H2SO4 answers
Question 17 of 26 Submit Balance the following chemical equation (if necessary): V205(s) + HCl(aq) →...
Question 17 of 26 Submit Balance the following chemical equation (if necessary): V205(s) + HCl(aq) → VOCI3(s) + H2O(1) 3c, Reset 60 @ (s) (0) (g) (aq) H2O HCI VOCI Vos • « H20
7. What will the coefficient be for NaOH in the chemical equation listed below when the...
7. What will the coefficient be for NaOH in the chemical equation listed below when the equation is balanced? H3PO4 (aq) + NaOH (aq) → NasPO4 (aq) + H20 (1) c) 2 d) 4 How many grams of metallic Na will be needed to produce 25.43 grams of Hz upon reaction with H2O? 2 Na (s) + H20 (1) + NaOH (aq) + H2 (g) a) 578.8 g b) 868.3 g c) 289.4 g d) 45.98 g 9. How many...
What will the coefficient be for NaOH in the chemical equation listed below when the equation...
What will the coefficient be for NaOH in the chemical equation listed below when the equation is balanced? H3PO4 (aq) + NaOH(aq) → Na3PO4 (aq) + H20 (1) d) 4 a) 1 b) 3 c) 2 8. How many grams of metallic Na will be needed to produce 25.43 grams of H2 upon reaction with H2O? 2 Na (s) +2H20 (1) + NaOH (aq) + H2 (8) a) 578.8 g b) 868.3 g c) 289.4 g d) 45.98 g 9....
Question 3 of 10 Submit Balance the following chemical equation (if necessary): Na3PO4(aq) + NiCiz (aq)...
Question 3 of 10 Submit Balance the following chemical equation (if necessary): Na3PO4(aq) + NiCiz (aq) → Ni3(PO4)2 (s) + NaCl(aq) Reset 30,2 Reset 60 @ 1 2 3 4 5 6 800 (s) 0 (g) (aq) Nis(POA)2 Nacı Na PO. Niclz • x H20 Question 4 of 10 Submit Balance the following chemical equation (if necessary): C3H6(g) + O2(g) + CO2(g) + H2O(g) Reset 30,2 Reset 60 @ 123460089 (aq) (s) CO2 (1) H20 (g) Oz CsHo • «...
9. Write a balanced chemical equation for the neutralization of NH3(aq) with HCl(aq). 10. How many...
9. Write a balanced chemical equation for the neutralization of NH3(aq) with HCl(aq). 10. How many moles of sodium hydroxide (NaOH) are needed to neutralize 0.844 mol of acetic acid (HC2H3O2)? (Hint: begin by writing a balanced chemical equation for the process.) 11. How many moles of perchloric acid (HClO4) are needed to neutralize 0.052 mol of calcium hydroxide [Ca(OH)2]? (Hint: begin by writing a balanced chemical equation for the process.) 12. Hydrazoic acid (HN3) can be neutralized by a...
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H2...
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H20 (1) --> 2 H2SO4 (aq) ? 02 mol SO2 2 mol H2SO4 2 mol H2SO4 2 mol O2 0 1 mol O2 2 mol H20 O 2 mol O2 1 mol O2 2 mol H20 2 mol SO2 Question 1 1 pts What do the coefficients in a balanced equation tell us? Mark ALL that...
Consider " 2 S2O32-". Which of the following statements is FALSE?
Consider " 2 S2O32-". Which of the following statements is FALSE? There are 3 O atoms contained in each unit. There are 4 S atoms contained in two units. Each unit of S2032 has a ratio of 1 S: 1.5 O Two units of S2032 have an overall charge of -4. 10 atoms are all connected together.The chemical equation H2 (3)+ O2 (3)>H2O (3) is not balanced. This equation CANNOT be balanced by adding a subscript of 2 behind the oxygen in H20. In other...
Chapter 7 1.) For each chemical equation (which may or may not be balanced), list the...
Chapter 7 1.) For each chemical equation (which may or may not be balanced), list the number of each type of atom on each side of the equation, and determine if the equation is balanced. Part D. List the number of each type of atom on the left side of the equation C5H12(g)+8O2(g)→5CO2(g)+6H2O(g) Part E. List the number of each type of atom on the right side of the equation C5H12(g)+8O2(g)→5CO2(g)+6H2O(g) 7.) Write a molecular equation for the precipitation reaction...
Balance the following chemical equations. Write the word "Balanced" if the equation is already balanced. a) 2 H2(g) + O2(g) → 2 H20(1) b) 2NH3(g) + H2SO4(90) → (NH4)2SO4(94) Decomposition Reactions a) 2H2O2(0) → 2 H2O(l) + O2(g) b) "Balanced" CaCO3(s) → "Balanced" CaQ/s) + "Balanced" CO2(g) Single Displacement Reactions a) Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) b) 2Nas) + 2H2O(1) ► 2NaOH(aq) + H2(g double Displacement Reactions a) AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) “Balanced" b) H2SO4(aq)...
QUESTION 1 Balance the equation: Al203 02 Al QUESTION 2 Balance the equation Hа0 CO2 O2 -> C2H6 QUESTION 3 Balance the equation: Caso4 Al(OH)3 Caа(ОН)2 Al2(S04)3 + QUESTION 4 Which chemical equation is properly balanced? 2 SO2 O2 2 H30 -2 H2SO4 so2+O2+ H20> H2$O4 So2+O2+4 H202 H2SO4 4 SO O24 H20-4 H2SO4 answers
Question 17 of 26 Submit Balance the following chemical equation (if necessary): V205(s) + HCl(aq) → VOCI3(s) + H2O(1) 3c, Reset 60 @ (s) (0) (g) (aq) H2O HCI VOCI Vos • « H20
7. What will the coefficient be for NaOH in the chemical equation listed below when the equation is balanced? H3PO4 (aq) + NaOH (aq) → NasPO4 (aq) + H20 (1) c) 2 d) 4 How many grams of metallic Na will be needed to produce 25.43 grams of Hz upon reaction with H2O? 2 Na (s) + H20 (1) + NaOH (aq) + H2 (g) a) 578.8 g b) 868.3 g c) 289.4 g d) 45.98 g 9. How many...
What will the coefficient be for NaOH in the chemical equation listed below when the equation is balanced? H3PO4 (aq) + NaOH(aq) → Na3PO4 (aq) + H20 (1) d) 4 a) 1 b) 3 c) 2 8. How many grams of metallic Na will be needed to produce 25.43 grams of H2 upon reaction with H2O? 2 Na (s) +2H20 (1) + NaOH (aq) + H2 (8) a) 578.8 g b) 868.3 g c) 289.4 g d) 45.98 g 9....
Question 3 of 10 Submit Balance the following chemical equation (if necessary): Na3PO4(aq) + NiCiz (aq) → Ni3(PO4)2 (s) + NaCl(aq) Reset 30,2 Reset 60 @ 1 2 3 4 5 6 800 (s) 0 (g) (aq) Nis(POA)2 Nacı Na PO. Niclz • x H20 Question 4 of 10 Submit Balance the following chemical equation (if necessary): C3H6(g) + O2(g) + CO2(g) + H2O(g) Reset 30,2 Reset 60 @ 123460089 (aq) (s) CO2 (1) H20 (g) Oz CsHo • «...
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H20 (1) --> 2 H2SO4 (aq) ? 02 mol SO2 2 mol H2SO4 2 mol H2SO4 2 mol O2 0 1 mol O2 2 mol H20 O 2 mol O2 1 mol O2 2 mol H20 2 mol SO2 Question 1 1 pts What do the coefficients in a balanced equation tell us? Mark ALL that...
Consider " 2 S2O32-". Which of the following statements is FALSE? There are 3 O atoms contained in each unit. There are 4 S atoms contained in two units. Each unit of S2032 has a ratio of 1 S: 1.5 O Two units of S2032 have an overall charge of -4. 10 atoms are all connected together.The chemical equation H2 (3)+ O2 (3)>H2O (3) is not balanced. This equation CANNOT be balanced by adding a subscript of 2 behind the oxygen in H20. In other...
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