H Br,HI,H ClO4,KBr,and KI are all classified as

A) acids. B) nonelectrolytes. C) strong electrolytes. D) weak electrolytes. A) acids. B) nonelectrolytes. C) strong electrolytes. D) weak electrolytes.

Determine the oxidation state of S in CaSO4.

A) -4 B) +2 C) -3 D) +6 E) +1 A) -4 B) +2 C) -3 D) +6 E) +1

How many grams of CaCl2 are formed when 30.00 mL of 0.00237 M Ca(OH)2 reacts with excess Cl2 gas? 2 Ca(OH)2(aq)+ 2 Cl2(g)→ Ca(OCl)2(aq)+ CaCl2(s)+ 2 H2O(l)

A) 0.00395 g B) 0.00789 g C) 0.0158 g D) 0.0253 g A) 0.00395 g B) 0.00789 g C) 0.0158 g D) 0.0253 g

A stock solution of HNO3 is prepared and found to contain 14.9 M of HNO3.If 25.0 mL of the stock solution is diluted to a final volume of 0.500 L,the concentration of the diluted solution is ________ M.

A) 0.298 B) 1.34 C) 0.745 D) 745 E) 298 A) 0.298 B) 1.34 C) 0.745 D) 745 E) 298

If 2352 grams of FeS2 is allowed to react with 1408 grams of O2 according to the following unbalanced equation,how many grams of Fe2O3 are produced? FeS2 + O2 → Fe2O3 + SO2

A) 1280 B) 1870 C) 1408 D) 300 E) 770 A) 1280 B) 1870 C) 1408 D) 300 E) 770

A 14.01 g sample of N2 reacts with 3.02 g of H2 to form ammonia (NH3).If ammonia is the only product,what mass of ammonia is formed?

A) 17.01 g B) 1.10 g C) 14.01 g D) 3.02 g E) 23.07 g A) 17.01 g B) 1.10 g C) 14.01 g D) 3.02 g E) 23.07 g

Identify the oxidation state of H in H2(g). Mg(s)+ 2 HBr(aq)→ MgBr2(aq)+ H2(g)

A) +1 B) +2 C) 0 D) -1 E) -2 A) +1 B) +2 C) 0 D) -1 E) -2

What is the molar concentration of lithium ions in a 0.550 M Li3PO4 solution?

A) 0.183 M B) 0.550 M C) 1.65 M D) 2.20 M E) 5.00 M A) 0.183 M B) 0.550 M C) 1.65 M D) 2.20 M E) 5.00 M

According to the following balanced reaction,how many moles of HNO3 are formed from 2.50 moles of NO2 if there is plenty of water present? 3 NO2(g)+ H2O(l)→ 2 HNO3(aq)+ NO(g)

A) 7.50 moles NO B) 3.75 moles NO C) 2.50 moles NO D) 1.67 moles NO E) 0.834 moles NO A) 7.50 moles NO B) 3.75 moles NO C) 2.50 moles NO D) 1.67 moles NO E) 0.834 moles NO

Exam 4: Chemical Quantities and Aqueous Reactions

Lead ions can be precipitated from aqueous solutions by the addition of aqueous iodide: Pb²⁺(aq)+ 2 I^-(aq)→ PbI₂(s) Lead iodide is virtually insoluble in water so that the reaction appears to go to completion.How many milliliters of 1.500 M HI(aq)must be added to a solution containing 0.300 mol of Pb(NO₃)₂(aq)to completely precipitate the lead?

(Multiple Choice)

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Question 81

HBr,HI,HClO₄,KBr,and KI are all classified as

(Multiple Choice)

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Question 82

What is the oxidation number of the chromium atom in H₂CrO₄?

(Multiple Choice)

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Question 83

How many molecules of HCl are formed when 70.0 g of water reacts according to the following balanced reaction? Assume excess ICl₃. 2 ICl₃ + 3 H₂O → ICl + HIO₃ + 5 HCl

(Multiple Choice)

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Question 84

Determine the oxidation state of S in CaSO₄.

(Multiple Choice)

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Question 85

How many grams of CaCl₂ are formed when 30.00 mL of 0.00237 M Ca(OH)₂ reacts with excess Cl₂ gas? 2 Ca(OH)₂(aq)+ 2 Cl₂(g)→ Ca(OCl)₂(aq)+ CaCl₂(s)+ 2 H₂O(l)

(Multiple Choice)

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Question 86

A stock solution of HNO₃ is prepared and found to contain 14.9 M of HNO₃.If 25.0 mL of the stock solution is diluted to a final volume of 0.500 L,the concentration of the diluted solution is ________ M.

(Multiple Choice)

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Question 87

Two samples of potassium iodide are decomposed into their constituent elements.The first sample produced 13.0 g of potassium and 42.3 g of iodine.If the second sample produced 24.4 kg of potassium,how many kg of iodine were produced?

(Multiple Choice)

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Question 88

Identify the spectator ions in the following molecular equation. KCl(aq)+ AgNO₃(aq)→ AgCl(s)+ KNO₃(aq)

(Multiple Choice)

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Question 89

How many moles of LiI are contained in 258.6 mL of 0.0296 M LiI solution?

(Multiple Choice)

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Question 90

If 2352 grams of FeS₂ is allowed to react with 1408 grams of O₂ according to the following unbalanced equation,how many grams of Fe₂O₃ are produced? FeS₂ + O₂ → Fe₂O₃ + SO₂

(Multiple Choice)

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Question 91

A 14.01 g sample of N₂ reacts with 3.02 g of H₂ to form ammonia (NH₃).If ammonia is the only product,what mass of ammonia is formed?

(Multiple Choice)

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Question 92

In an acid-base neutralization reaction,33.74 mL of 0.500 M potassium hydroxide reacts with 50.00 mL of sulfuric acid solution.What is the concentration of the H₂SO₄ solution?

(Multiple Choice)

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Question 93

How many grams of calcium chloride are needed to produce 5.00 g of potassium chloride? CaCl₂(aq)+ K₂CO₃(aq)→ 2 KCl(aq)+ CaCO₃(aq)

(Multiple Choice)

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Question 94

Identify the oxidation state of H in H₂(g). Mg(s)+ 2 HBr(aq)→ MgBr₂(aq)+ H₂(g)

(Multiple Choice)

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Question 95

Which of the following compounds is NOT an Arrhenius acid?

(Multiple Choice)

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Question 96

A student prepared a stock solution by dissolving 15.0 g of KOH in enough water to make 150.mL of solution.She then took 15.0 mL of the stock solution and diluted it with enough water to make water to make 65.0 mL of a final solution.What is the concentration of KOH for the final solution?

(Multiple Choice)

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Question 97

What is the molar concentration of lithium ions in a 0.550 M Li₃PO₄ solution?

(Multiple Choice)

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Question 98

According to the following balanced reaction,how many moles of HNO₃ are formed from 2.50 moles of NO₂if there is plenty of water present? 3 NO₂(g)+ H₂O(l)→ 2 HNO₃(aq)+ NO(g)

(Multiple Choice)

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Question 99

Global warming is thought to be caused by the increase of one particular gas.Name the gas.

(Multiple Choice)

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Question 100

Showing 81 - 100 of 239

Exam 4: Chemical Quantities and Aqueous Reactions

H Br,HI,H ClO4,KBr,and KI are all classified as

What is the oxidation number of the chromium atom in H2CrO4?

How many molecules of HCl are formed when 70.0 g of water reacts according to the following balanced reaction? Assume excess ICl3. 2 ICl3 + 3 H2O → ICl + HIO3 + 5 HCl

Determine the oxidation state of S in CaSO4.

How many grams of CaCl2 are formed when 30.00 mL of 0.00237 M Ca(OH)2 reacts with excess Cl2 gas? 2 Ca(OH)2(aq)+ 2 Cl2(g)→ Ca(OCl)2(aq)+ CaCl2(s)+ 2 H2O(l)

A stock solution of HNO3 is prepared and found to contain 14.9 M of HNO3.If 25.0 mL of the stock solution is diluted to a final volume of 0.500 L,the concentration of the diluted solution is ________ M.

Two samples of potassium iodide are decomposed into their constituent elements.The first sample produced 13.0 g of potassium and 42.3 g of iodine.If the second sample produced 24.4 kg of potassium,how many kg of iodine were produced?

Identify the spectator ions in the following molecular equation. KCl(aq)+ AgNO3(aq)→ AgCl(s)+ KNO3(aq)

How many moles of LiI are contained in 258.6 mL of 0.0296 M LiI solution?

If 2352 grams of FeS2 is allowed to react with 1408 grams of O2 according to the following unbalanced equation,how many grams of Fe2O3 are produced? FeS2 + O2 → Fe2O3 + SO2

A 14.01 g sample of N2 reacts with 3.02 g of H2 to form ammonia (NH3).If ammonia is the only product,what mass of ammonia is formed?

In an acid-base neutralization reaction,33.74 mL of 0.500 M potassium hydroxide reacts with 50.00 mL of sulfuric acid solution.What is the concentration of the H2SO4 solution?

How many grams of calcium chloride are needed to produce 5.00 g of potassium chloride? CaCl2(aq)+ K2CO3(aq)→ 2 KCl(aq)+ CaCO3(aq)

Identify the oxidation state of H in H2(g). Mg(s)+ 2 HBr(aq)→ MgBr2(aq)+ H2(g)

Which of the following compounds is NOT an Arrhenius acid?

A student prepared a stock solution by dissolving 15.0 g of KOH in enough water to make 150.mL of solution.She then took 15.0 mL of the stock solution and diluted it with enough water to make water to make 65.0 mL of a final solution.What is the concentration of KOH for the final solution?

What is the molar concentration of lithium ions in a 0.550 M Li3PO4 solution?

According to the following balanced reaction,how many moles of HNO3 are formed from 2.50 moles of NO2 if there is plenty of water present? 3 NO2(g)+ H2O(l)→ 2 HNO3(aq)+ NO(g)

Global warming is thought to be caused by the increase of one particular gas.Name the gas.

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Filters

HBr,HI,HClO₄,KBr,and KI are all classified as

What is the oxidation number of the chromium atom in H₂CrO₄?

How many molecules of HCl are formed when 70.0 g of water reacts according to the following balanced reaction? Assume excess ICl₃. 2 ICl₃ + 3 H₂O → ICl + HIO₃ + 5 HCl

Determine the oxidation state of S in CaSO₄.

How many grams of CaCl₂ are formed when 30.00 mL of 0.00237 M Ca(OH)₂ reacts with excess Cl₂ gas? 2 Ca(OH)₂(aq)+ 2 Cl₂(g)→ Ca(OCl)₂(aq)+ CaCl₂(s)+ 2 H₂O(l)

A stock solution of HNO₃ is prepared and found to contain 14.9 M of HNO₃.If 25.0 mL of the stock solution is diluted to a final volume of 0.500 L,the concentration of the diluted solution is ________ M.

Identify the spectator ions in the following molecular equation. KCl(aq)+ AgNO₃(aq)→ AgCl(s)+ KNO₃(aq)

If 2352 grams of FeS₂ is allowed to react with 1408 grams of O₂ according to the following unbalanced equation,how many grams of Fe₂O₃ are produced? FeS₂ + O₂ → Fe₂O₃ + SO₂

A 14.01 g sample of N₂ reacts with 3.02 g of H₂ to form ammonia (NH₃).If ammonia is the only product,what mass of ammonia is formed?

In an acid-base neutralization reaction,33.74 mL of 0.500 M potassium hydroxide reacts with 50.00 mL of sulfuric acid solution.What is the concentration of the H₂SO₄ solution?

How many grams of calcium chloride are needed to produce 5.00 g of potassium chloride? CaCl₂(aq)+ K₂CO₃(aq)→ 2 KCl(aq)+ CaCO₃(aq)

Identify the oxidation state of H in H₂(g). Mg(s)+ 2 HBr(aq)→ MgBr₂(aq)+ H₂(g)

What is the molar concentration of lithium ions in a 0.550 M Li₃PO₄ solution?

According to the following balanced reaction,how many moles of HNO₃ are formed from 2.50 moles of NO₂if there is plenty of water present? 3 NO₂(g)+ H₂O(l)→ 2 HNO₃(aq)+ NO(g)