The most stable conformation of line structure X is HO ОН X iPr Me H. iPr iPr Me H. 'Pr Me. iPr H iPr HO, H OH -HO- Me H HOPOH HO. HO. ОН Me OH Me HO HO Me Me I II III IV V VI IV VI None of the given options %3D %D

Calorimetry Chart Mass of Food 20.7 g 3.2 g Mass of Food residue (after burning) Volume of water heated 94.2 ml Initial Temperature of water Final Temperature of water 13.6°C 78.3°C How many Calories are in the food in the data table? * O 1.13 Calories O 6.09 Calories O 1.37 Calories O 7.38 Calories DELL

Modern commercial airliners are largely made of aluminum, a light and strong metal. But the fact that aluminum is cheap enough that airplanes can be made out of it is a bit of historical luck. Before the discovery of the Hall-Héroult process in 1886, aluminum was as rare and expensive as gold. What would happen if airplanes had to be made of steel? The fuselage of the Boeing 747, which can carry 400 passengers, is approximately a hollow aluminum cylinder without ends, 70.7m long, 6.5m wide, and 2.5mm thick (see sketch at right). Suppose this fuselage was made of steel (density 7.87/gcm3) instead of aluminum (density 2.70/gcm3), and let's say the average passenger has a mass of 81kg. We'll also assume the engines can't lift any greater mass than they already do. Calculate the number of passengers that the Boeing 747 could carry if its fuselage was made of steel.

How many calories are needed to raise 500 grams of water from 25 degrees Celsius to 40 degrees Celsius?

MULTIPLE CHOICE Question 2 What type of energy flows naturally from a hot object to a cooler object? A light energy B mechanical energy C potential energy D thermal energy edi

Which of the following types of energy is/are classified as potential energy? 1.Thermal energy 2.Energy stored in a spring 3.Gravitational energy (A) 2 and 3 1 only 2 only 3 only 1, 2, and 3

2116.16 J of energy is equivalent to how many calories? Group of answer choices 2120.34 cal 0.506 cal 505.77 cal 2.12 cal

The water in the calorimeter was found to be 20.0oC.  The line gave a value of 33.6oC at 120 s (the time of mixing for this trial).  The ΔT for the heat calculation was  a. 13.6*c b. 20.0*c c. 33.6*C D. 53.6*C

Heating a 37 g of iron bar changes the temperature to 77.2°C. Find the heatchange.

The Nutrition Facts label for one slice of wheat bread gives Nutrition Facts the percent daily value of various nutrients based on a 2,000-kcal diet. Based on the percent daily values for the nutrients, calculate how many grams of each nutrient are Serving Size: 1 slice (25g) Amount Per Serving Calories 76 Calories from Fat 9 suggested daily for a 2,000-kcal diet. % Daily Value Total Fat 1.02 g 296 Saturated Fat 0.23 g 196 Trans Fat Cholesterol 0 mg Dietary fiber: Sodium 145.75 mg 696 Potassium 81.5 mg 296 Total Carbohydrate 12.79 g 496 Dietary Fiber 2.3 g g96 Sugars 1.44 g Total fat: Sugar Alcohols Protein 4.07 g Vitamin A 1 IU 0% Vitamin C 0 mg 0% Calcium 32.5 mg 3% Saturated fat: Iron 0.74 mg 4% Sodium: obout us careers privecy policy terma of uae contact us help Lr O 79°F