NU 726 Week 7 Discussion 1

Can you help me answer this type of question from my study review package please

The average adult human burns 2.00 × 10³ kcal per day in energy. What is this rate in kJ per hour? # 3 69 2.00 × 10³ 80 F3 ADD FACTOR S x( ) SA 4 1000 kcal/day 000 000 F4 0.001 % 5 1 cal 리니! F5 4184 < C 60 days hr ditv F6 2 4.184 = 2.01 * 106 1.15 * 105 kJ/hr kJ RA ANSWER MacBook Air & 7 349 F7 J 13 * 8 F8 24 kcal - RESET 5 9 20.0 min POR DE F9 O F10

Goofy Incorporated bought a sizeable amount of Crazy Company's bonds for $200,000 on May 5, 2023, and classified the investment as available-for-sale. The market value of the bonds declined to $124,000 by December 31, 2023. Goofy reclassified this investment as trading securities in December of 2024 when the market value had risen to $163,000. What effect on 2024 net income should be reported by Goofy for the Crazy Company bonds? A: 39,000 net unrealized holding gain B: 37,000 net unrealized holding loss C: 76,000 net unrealized holding loss D: 0

02-Sadra is a college student studying chemistry. In one of his labs, he needs to add 10 grams of sodium carbonate to a mixture and analyze the results. When he is measuring the chemical on a weight sensor, he notices the amount of Na2co3 he is weighing is much larger than everyone else's, yet the sensor reads 10 grams. He dumps the chemicals back into the container and reweighs it, only to get the same result. Which of the following is accurate in describing Sadra's weight sensor? Not reliable, and not valid O Not reliable, but valid O Reliable, but not valid Reliable and valid Question 10 02-Dr. Narayan conducted a research study about the effects that coffee has on the brain. However, he told participants that it was an on-going survey on the amount of coffee they consumed on a day-to-day basis. This type of study is known as deception. Is it legally allowed in this situation and why? O Yes, but only if Dr. Narayan informed the participants of the true meaning of the study at the…

4. True or False (1) Chlorine demand is the difference between total chlorine and free chlorine (2) In raw wastewater samples, most of nitrogen is in the form of nitrate. (3) If 10 mg/L of NH3-N is converted to nitrate, the nitrate concentration is 10 mg/L as N. (4) Free chlorine consists of hypochlorous acid and hypochlorite. (5) Chloramines is a weaker disinfectant than free chlorine. (6) Na2HPO4 contributes to the orthophosphates. (7) For phosphorus analysis, the purpose of the autoclave is to kill the phosphorus bacteria which interferes colorimetric analysis. (8) Chloride is an effective disinfectant for water and wastewater treatment. (9) "Crown" corrosion is caused by the corrosive action of H₂SO4. (10) Breakpoint chlorination can be used for removal of ammonia.

The sun supplies energy at a rate of about 1.0 kilowatt per square meter of surface area (1 watt = 1 J/s). The plants in an agricultural field produce the equivalent of 21 kg of sucrose (C12 H22 O11) per hour per hectare (1 ha = 10,000 m Assuming that sucrose is produced by the reaction m²). 12CO2 (9) + 11H2O(1) → C12H22O11(s) + 120O2(g) AH=5640 kJ calculate the percentage of sunlight used to produce the sucrose – that is, determine the efficiency of photosynthesis in this field. Percent efficiency

Jack and Jill are curious about the factors that affect plant growth.  They perform several experiments using pea plants  (a)  The leaves of the pea plants that received too much water turned yellow.  (b)  Jill decided that 5 hours of indirect sunlight gave optimum growth.    (c)  Jack gave the pea plants a controlled amount of water each day.    (d)  Jill thinks that too little sunlight will affect plant growth.     This part please     (a)  Identify one variable (other than water and sunlight) that could be tested. (b)  Write a hypothesis using this variable. (c)   Design an experiment to test this variable.

The World Health Organization (WHO) recommends us to limit "free sugar" intake to no more than 5 % of the total daily Calories consumed. Sugars like sucrose are considered "free sugars" and provide about 4 Calories per gram. If an individual consumes 2000 Calories in a day, what is the maximum amount of sugar they are advised to take in? How does this amount compare to the added sugars found in popular soft drinks?

5 ✓7 D ✔B ✓9 ✓ 10 ✓11 12 The human body burns glucose (C,H,O,) for energy according to this chemical reaction: CH₁₂0+60-6CO₂ + 6H₂0 The products of the reaction are carbon dioxide (CO₂) and water (H₂O). Interestingly, all of the carbon dioxide and much of the water exits the body through the lungs: on every breath, the average person exhales 500 ml. of air, which is typically enriched to 4% CO, and 5% water vapor by volume. In short, when a person loses weight by dieting, the weight that is lost actually departs his body as a gas, every time he exhales. Each kilogram of body fat lost requires exhaling about 2.8 kg of carbon dioxide. Calculate how many breaths it takes an average person to "exhale" 3.00 kg of fat. Round your answer to the nearest thousand. You'll need to know that the density of CO₂ is 2.0 kg/m³. 10 13 ? D

The previous answer I was given was incorrect. Please be sure of your information. Read the question thoroughly and explain. Thank you.

Chemistry Please kindly answer this question, thank you in advance!!!!

[References] A serving size of nine cookies contains 7 g of fat, 24 g of carbohydrates, and 9 g of protein. If walking 1 mile consumes 170 kJ of energy, how many miles must you walk to burn off enough calories to eat nine cookies? Assume the energy content of fats, carbohydrates, and proteins are 8 kcal/g, 4 kcal/g, and 4 kcal/g, respectively. 1 cal = 4.184 J. miles Submit Answer Try Another Version 3 item attempts remaining

13) 16.0 grams of a certain food contain 130 calories. How many grams of this food would you need in order to consume 2150 calories? 14) The speed of sound in air is about 343 m/s. What is this speed in miles per hour? 15) If the gas in England costs £2.99/1, what is the cost in $/gal? (assume E1.00 = $1.50) 16) Calculate the density of mercury (13.6 g/cm) in units of kg/m³. 17) The daily dose of antibiotic for the treatment of an ear infection is 115 mg/kg of body weight. If the antibiotic tablets are available in 250. mg size, calculate the number of tablets that a 33.5 lb. child must take per day. 1 1

Please help me answer questions 2,3and 4

Density of iPrOH = 786 kg/m^3 molar mass of iPrOH= 60.1 g/mol

Ethanol, C₂H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The combustion of one mole of ethanol releases 326.7 kcal of energy. The combustion of one mole of 2-methylhexane, C7H16, releases 1.150 × 10³ kcal of energy. How much energy is released during the complete combustion of 450. grams of 2-methylhexane? kcal Assuming the same efficiency, would 450. grams of ethanol provide more, less, or the same amount of energy as 450. grams of 2- methylhexane?

For the reaction 2N2O5(g) ® 4NO2(g) + O2(g), the following data were collected.   t (minutes) [N2O5] (mol/L)   0 1.24 x 10–2   10 0.92 x 10–2   20 0.68 x10–2   30 0.50 x 10–2   40 0.37 x 10–2   50 0.28 ´ 10–2   70 0.15 ´ 10–2         The initial rate of production of NO2 for this reaction is approximately:   A) 6.4 x10–4 mol/L • min   B) 3.2 x10–4 mol/L • min   C) 1.24 x 10–2 mol/L • min   D) 1.6 x 10–4 mol/L • min   E) none of these

Convert 475 cal to joules STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 4184 4.75 x 10° 1990 114 475 1000 1.99 x 10 0.001 4.184 kcal J kJ cal