07-04_task1 (2)

text fs % Questions: S T Calibri 1 f6 - Key Words: global warming 1. Why is oxygen NOT a greenhouse gas? ☐ 18 12 6 Y G + & BIUA 7 Lesson 2: Greenhouse Gases SYMPIREH 2. Why is the effect of greenhouse gases in the atmosphere similar to the effect of glass surrounding greenhouse? 3. The atmosphere on the planet Venus is almost 96 % carbon dioxide. What effect might its concentration of carbon dioxide have on the average surface temperature on Venus? fB 3 Page 3: The Structure of Greenhouse Gases Questions 4. What effect does an increase in the atmospheric carbon dioxide levels (and therefore rising temperatures) have on the amount of water vapor in the atmosphere? Why? U 漫 5. Both coal and natural gas can be burned to generate electricity. However, burning natural gas produces about half the carbon dioxide emissions as burning coal to provide the same amount of energy. Why is it better for the environment to phase out coal-burning power plants in favor of natural gas-burning power…

If the BOD of a municipal wastewater at the end of 7 days is 60 mg/liter and the ultimate BOD is 85 mg/liter, then the rate constant is per day. (3 points) Select one: O a. 0.01748 O b. 0.1487 374 d 0.1748

Fill in the missing reactant or products.

1. The detonation of nitroglycerin proceeds as follows:4 C3H5N3O9(l) → 12 CO2(g) + 6 N2(g) + O2(g) + 10 H2O(g)a. How many oxygen atoms are present in a 4.5 g sample of nitroglycerin, C3H5N3O9? (8 pts)b. If a sample containing 2.00 mL of nitroglycerin (density = 1.592 g/mL) is detonated, how many grams of nitrogen gas are produced?

What is the missing reactant? Select one: A. I B. III C. iv OD ii CH-8-001 MgCl LDA 78 C THE ILL IV ? ())-01-2-0031,

Zinc and sodium metal each react with sulfuric acid according to the following equations. Zn(s)+H2SO4(aq)⟶ZnSO4(aq)+H2(g)Zn(s)+H2SO4(aq)⟶ZnSO4(aq)+H2(g) 2Na(s)+H2SO4(aq)⟶Na2SO4(aq)+H2(g)2Na(s)+H2SO4(aq)⟶Na2SO4(aq)+H2(g) A 26.14 g mixture of zinc and sodium is reacted with a stoichiometric amount of sulfuric acid. The reaction mixture is then reacted with 264 mL of 1.86 M barium chloride to produce the maximum possible amount of barium sulfate. Determine the percent sodium by mass in the original mixture.  1.)What is the mass percent Na?  I just asked this question on here and was told the answer was 12.64, but my homework says that is incorrect. These are the answers that have been wrong so far: 11.9%, 12.3%,16%,53.4%,4.75%,86.4%, and 12.64%. Please help, thanks!

Zinc and sodium metal each react with sulfuric acid according to the following equations. Zn(s)+H2SO4(aq)⟶ZnSO4(aq)+H2(g)Zn(s)+H2SO4(aq)⟶ZnSO4(aq)+H2(g) 2Na(s)+H2SO4(aq)⟶Na2SO4(aq)+H2(g)2Na(s)+H2SO4(aq)⟶Na2SO4(aq)+H2(g) A 26.14 g mixture of zinc and sodium is reacted with a stoichiometric amount of sulfuric acid. The reaction mixture is then reacted with 264 mL of 1.86 M barium chloride to produce the maximum possible amount of barium sulfate. Determine the percent sodium by mass in the original mixture.  1.)What is the mass percent Na?

8) The average adult human body contains about 4.7 liters of blood with a hemoglobin concentration of 150. g/L. If the concentration of iron in blood is 2.5 M, how much iron is lost (in grams) if a hemorrhage results in a 1-L blood loss? a) 2.0 b) 60 c) 140 d) 20

Question 16 of 40 Balance the following chemical equation (if necessary): C3H,O2(g) + O2(g) → H2O(g) + CO2(g) H2O (g) + CO2 (g) 3C2 2- Reset 1. 2. 4 6. 8. 9. ) (s) (1) (g) (aq) LO 3.

du.co Question 10 of 22 Balance the following chemical equation (if necessary): CH(g) + O,(g) → H,O(g) + CO,(g) 04- 03. 02. O+ O2+ D3+ 04+ 1 4 7 8 9. O3 04 Os + (s) (1) (g) (aq) CO CH.0 H,O Reset • x H,O Delete MacBook Air 80 DII F3 F4 F7 F8 F9 @ $ & 2 4 5 6 8 9 W E R Y S D F G H J K C V B M * CO *3

Which of the equations below are true?

Lab 1.2 Prelab Name: Lab Period: Concentrations, Dilutions, and Homeostasis Review Material 1. The basic unit of volume in the metric system is the 2. What does the prefix micro- mean? 3. What is the abbreviation for the meter in the metric system? 4. The basic unit of weight (mass) in the metric system is the 5. What does the prefix centi- mean? 6. What is the temperature of boiling water in the metric system? 7. What does the prefix kilo- mean? 8. Which focus knob is used with the high power objective? 9. What is the total magnification when using the 10x objective? 10. Which parts of a microscope regulate the amount of light? 11. Which focus knob is used with the 5x objective? 12. A total magnification of 400x requires the use of the 10x ocular lens with which objective? New Material 1. Define the following terms: Solution Solute Solvent 2. What is Avogadro's number? 3. Define the term molarity. 4. What is a mole? 5. Define homeostasis. 6. List at least three variables in the human…

How many moles of lactic acid (C3H6O3) are contained in 3.288 grams of lactic acid? (4 sf)

4x zoom 24 Help reading a burette 25 25 26 Sample site B Final reading (cm³) Initial reading (cm³) Volume added (cm³) Average volume added (cm³)

Select A if statement A is trueSelect B if statement B is true Select C if both statement A and B are trueSelect D if neither statement A nor B are true 1. Fertilizer X is a complete fertilizer with a fertilizer grade of 25-25-25, it is the only fertilizer material needed to satisfy a recommendation of 120-50-60 kg/ha; (b) Fertilizer X (25-25-25), Fertilizer Y (0-0-62) and fertilizer z (0-50-0) are the fertilizer materials needed to satisfy a recommendation of 120-50-60 kg/ha.   2. (a) a recommendation of 80-80-80 kg/ha is satisfied with 53 kg of fertilizer X (15-15-15)/ha; (b) the same recommendation (80-80-80) is satisfied by applying 0.4 g of fertilizer X to a 15 kg soil in a clay pot. 3. (a) Lower fertilizer analysis implies higher amounts of the fertilizer material needed to be applied to satisfy a recommendation. (b) Fertilizer analysis or grade is expressed as %N-%P-%K, and is usually printed on the fertilizer container/sack/pack 4. (a) Under acidic conditions, all of the plant…

What is the pH of a 0.25 M solution of a strong acid? (0.6)

السلم Br HO 1. NaBH4 (0.25 eq.), H₂O 2. 1. 1. MgBr (1 eq.), CH3CH₂OCH₂CH3 MgBr (xs), Et₂O 2. DCI, D₂O Br . Mgº (1 eq.) 2. CH₂CH₂OCH₂CH3 MgBr (excess) CH3CH₂OCH₂CH3

Suspect #1: George Norman Suspect #2: Becky Baker George Norman recently Becky Baker is a world famous chef. She had just finished baking a cake at the time of the crime. The recipe called for baking soda. The formula for baking soda (sodium bicarbonate) is had an accident where he cut himself with a Alaia knife. He cleaned the wound with rubbing alcohol. The formula for rubbing alcohol Bak ing Seda NaHCOз. (isopropanol) is C3H80. Suspect # 3: Liz Lemon Suspect #4: Ben Linus Liz Lemon just had her nails Ben Linus had been walking done, and she still has traces of nail polish remover on her hands. Nail around in the rain for about an hour before the crime polish remover he was suspected contains acetone. Acetone of occurred. He The formula for Polish was dripping wet with water acetone is C3H60. renover at the time. The formula for water is H2o.

Questions 6 refers to the following balanced chemical equations (Reaction 1): 6. Acetic anhydride (0.020 moles) is required for Reaction 1. What volume (mL) of acetic anhydride is this? (density = 1.08 g/mL) a. 1.9 mL b. 0.20 mL c. 2.2 mL d. 0.022 mL Context in photo

In addition name all of the compound in the solution of this problem

2:26 1 Question 22 of 25 Submit Construct the expression for Kc for the following reaction. 2 Ag(s) + Zn*(aq) = 2 Ag*(aq) + Zn(s) 1 Drag the tiles into the numerator or denominator to form the expression. K. = 5 RESET [Ag] 2[Ag] [Ag]? [Zn*] 2[Zn?*] [Zn**]? [Ag*] 2[Ag*] [Ag*]? [Zn] 2[Zn] [Zn]?

(5.8)Which of the following reactions will form a gaseous product? O H₂CO3(aq) + Pb(NO3)2(aq) O NaOH(aq) + HNO3(aq) O None of these O Na₂SO3(aq) + H₂SO4(aq) ◄ Previous

HC2H3O2(aq)+NaOH(aq)⟶NaC2H3O2(aq)+H2O(l)HC2H3O2(aq)+NaOH(aq)⟶NaC2H3O2(aq)+H2O(l)   Trial  Vi (mL) Vf (mL) 1 4.98 15.96 2     3       For their first trial, a student pipettes 5.00 mL of a vinegar solution into an Erlenmeyer flask. The student titrates the vinegar with standardized NaOH with a molarity of 0.28 M. The volume of titrant used was recorded in the table above. Calculate the molarity of the vinegar solution for this trial. Enter a number without units.