Identify the type of biological molecule each of the following
Get college assignment help at Smashing Essays Question Identify the type of biological molecule each of the following is an example of. (4 points) i. Starch (2 points) ii. Enzyme (2 points)
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Question I don’t know if it is just the way the questions are phrased that I’m not understanding . Help! src=”/qa/attachment/9204943/” alt=”Capture4a.PNG” /> ATTACHMENT PREVIEW Download attachment Capture4a.PNG
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Question please answer this written no typed out answers thanks ATTACHMENT PREVIEW Download attachment Question 7.PNG
Part a) ClO- style=”background-color:transparent;color:rgb(0,0,0);”> (aq) Cr(OH)4- (aq) → CrO4-2
Question Part a) ClO- style=”background-color:transparent;color:rgb(0,0,0);”> (aq) Cr(OH)4- (aq) → CrO4-2 (aq) Cl- (g) (basic conditions) i. Balanced Redox Reaction: Step 1: Step 2: Step 3: Step 4: Step 5: ii. Reactant That Is The Oxidizing Agent: iii. Reactant That Is The Reducing Agent: b) Al S → Al(OH)3 HS- (basic conditions) i. Balanced Redox Reaction: Step 1: Step 2: Step 3: Step 4: Step 5: ii. Reactant That Is The Oxidizing Agent: iii. Reactant That Is The Reducing Agent: c) VO2 Zn → VO 2 Zn 2 (acidic conditions) i. Balanced Redox Reaction: Step 1: Step 2: Step 3: Step 4: Step 5: ii. Reactant That Is The Oxidizing Agent: iii. Reactant That Is The Reducing Agent: d) MnO4- (aq) Br- (aq) → MnO2 (s) BrO3- (aq) (basic conditions) i. Balanced Redox Reaction: Step 1: Step 2: Step 3: Step 4: Step 5: ii. Reactant That Is The Oxidizing Agent: iii. Reactant That Is The Reducing Agent: e) I- SO4-2 → I2 S (acidic conditions) i. Balanced Redox Reaction: Step 1: Step 2: Step 3: Step 4: Step 5: ii. Reactant That Is The Oxidizing Agent: iii. Reactant That Is The Reducing Agent:
Question 1: The galvanic cell (voltaic cell) shown to the
Question Question 1: The galvanic cell (voltaic cell) shown to the below has a magnesium electrode, a silver electrode, and two solutions made by dissolving Mg(NO3)2 in water and AgNO3 in water. Refer to this cell for parts a through f.Part a: Which substance is losing electrons? a. Mg 2 b. Mg c. Ag d. AgPart b: The magnesium electrode is the: a. cathode b. anode c. salt bridge d. porous diskPart c: The metal (electrode) that will gain mass is the: a. Ag b. Mg c. salt bridge d. none of them will gain massPart d: The direction of the electron flow in this cell is from: a. Mg to Ag b. Ag to Mg c. it fluctuates d. can’t predictPart e: What are the half reactions associated with this cell? (pick two) a. Ag 1e- → Ag b. Ag → Ag 1e- c. Mg 2 2e- → Mg d. Mg → Mg 2 2e-Part f: Calculate the electron potential (i.e. voltage) for this reaction. a. -3.155 V b. -1.557 V c. 1.557 V d. 3.155 V ATTACHMENT PREVIEW Download attachment Electrochemistry Test Image 1.PNG
What quantity of charge is required to reduce 21.4 g
Question What quantity of charge is required to reduce 21.4 g of CrCl3 to chromium metal? (1 Faraday = 96,485 coulombs).
How many moles of electrons are produced from a current
Question How many moles of electrons are produced from a current of 17.6 A in 3.00 hours?
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Question help with 12 AND 13 EXPLAIN 13 PLEASE ATTACHMENT PREVIEW Download attachment IMG-1474.JPG
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Question Help! I don’t know how to start this one. ATTACHMENT PREVIEW Download attachment Capture6a.PNG
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Question Help! I don’t know where to start! ATTACHMENT PREVIEW Download attachment Capture6b.PNG
The diffusion coefficient of N2 style=”color:rgb(0,0,0);”> is approximately __________ times
Get college assignment help at Smashing Essays Question The diffusion coefficient of N2 style=”color:rgb(0,0,0);”> is approximately __________ times that of O2.201.50.5
Fill in the informotion for each reaction based on the
Question Fill in the informotion for each reaction based on the informotion from the solubility rules and from the experimental observation.
The solubility product of CaSO4⋅2H2O is 2.4×10-5. What mass of
Question The solubility product of CaSO4⋅2H2O is 2.4×10-5. What mass of this salt will dissolve in 1.0 L of 0.010 M SO42−?
can you please help with the steps to solve? A
Question can you please help with the steps to solve? A tire has a pressure of 1.8 atm at 20 degrees Celsius. At the end of a long trip, the tire pressure increased to 2.0 atm. What was the temperature of the air inside the tire (in degrees Celsius)? 53 degrees Celsius
can you please help with the steps to solve?1. A
Question can you please help with the steps to solve?1. A sample of gas occupies 15.0 L at a pressure of 2.00 atm and a temperature of 27 degrees Celsius. If the pressure is lowered to 1.00 atm, and the temperature is raised to 127 degrees Celsius, what would be the new volume of the gas sample? 40.0 L
.can you help with steps to solve. thanks!! A sample
Question .can you help with steps to solve. thanks!! A sample of nitrogen gas has a volume of 3.0 L at 25 degrees Celsius and 720 torr. What would the volume be at STP? (Hint: This is a combined gas law question). 2.6 L
Pre lab for electrochemical cells ? ATTACHMENT PREVIEW Download attachment
Question Pre lab for electrochemical cells ? ATTACHMENT PREVIEW Download attachment image.jpg NAME: Pre-Lab Questions
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Question />please solve the problem thank you ! Attachment 1 Attachment 2 ATTACHMENT PREVIEW Download attachment Prob 5_1.JPG ATTACHMENT PREVIEW Download attachment Prob 5_2.JPG
Based on the thermodynamics data, calculate the Kb of NH3C.
Question Based on the thermodynamics data, calculate the Kb of NH3C.
On the western prairie where trees were sparse, cowboys fueled
Question On the western prairie where trees were sparse, cowboys fueled their campfires with dried cattle dung (referred to as “cow chips”). What kind of energy would cow chips provide? What would the source of this energy have been? Name one advantage and one disadvantage of using this type of fuel to produce electricity. (8 points)
1. In a laboratory experiment, a team of students collects
Question 1. In a laboratory experiment, a team of students collects 100 mL of hydrogen gas at 22 °C and 90.659 kPa. Determine the volume the gas sample would have at standard temperature and pressure (273 K and 101.325 kPa). 2. If you read the label on a bottle of chlorine bleach, you will find cautions about how the bleach is to be used. If used improperly, chlorine bleach decomposes, releasing toxic chlorine gas, Cl2. What amount of chlorine gas is released from chlorine bleach if the gas occupies 64 mL at 22 °C and 102 kPa? 3. Calcium carbonate reacts with hydrochloric acid as follows: CaCO3(s) 2 HCl(aq) → CaCl2(aq) H2O(l) CO2(g) a. What volume of carbon dioxide, measured at 20 °C and 100.0 kPa, would be produced from 1025 g of calcium carbonate? (4 K marks) b. Calculate the mass of calcium carbonate required to produce 1550 L of carbon dioxide at 22.5 °C and 100.0 kPa. 4. Alberta is a major producer of ethane. Ethane is used primarily to make other chemicals. It is also used as a fuel. Like all hydrocarbons, complete combustion produces water vapour and carbon dioxide. a. What is a balanced chemical equation for the combustion of butane to produce water vapour and carbon dioxide. b. How does the total volume of the reactants in Part a. compare to the total volume of the products? c. What volume of water vapour is produced from 56.0 g of ethane at STP? d. What volume of carbon dioxide forms from 78 g of oxygen at 98 kPa and 24.0 0C? (Assume that oxygen is the limiting reagent in a complete combustion reaction.)
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