How many grams of o two are required for complete combustion
Ethanol, is added to gasoline to produce E85, a fuel for automobiles engines. How many grams of O2 are required for complete combustion of 421g of ethanol ? When C2H5OH +3O2 produces 2CO2 + 3H2O.
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Who was it that said "I've finally worked out an explanation as to why planets orbit the sun and moons orbit planets. It is gravity that keeps an object in orbit!"
A student titrates 50 mL of apple juice and reports the following in the titration to the phenolphthalein end? What is the concentration of the total available acide in moles/L of the apple juice?
A toy cannon uses a spring to project a 5.40 g soft rubber ball. The spring is originally compressed by 5.09 cm and has a force constant of 7.97 N/m. When the cannon is fired, the ball moves 15.3 cm through the horizontal barrel of the cannon, and
Of the roles that the press plays in the American political system, which is it least equipped to carry out properly?
Why was printing and publishing books and music so profitable in the Renaissance? How was information transmitted before printing was invented?
A closed organ pipe 0.8 m long has a diameter of 7.0 cm. The air in the church is 15oC. What is the speed of sound at 15oC?
A Federation starship (1.0 106 kg) uses its tractor beam to pull a shuttlecraft (1.0 104 kg ) aboard from a distance of 8 km away. The tractor beam exerts a constant force of 4.0 104 N on the shuttlecraft. Both spacecraft are initially at rest. Ho
50.0 g of KCl at 27.0 °C is dissolved in 100. mL of 27.0 °C water in a coffee cup calorimeter. What is the final temperature of the salt solution? Assume that the heat capacity of the solution is 4.184 J/g·°C
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but I would like to discuss to what extent employers should/should not influence or curb political participation in their workplaces.
Suppose you are the head of an island nation with a poor, growing population and the natural resources of the island are being degraded.
Question: What was the economic and political impact, if any protect the health and welfare to citizens ?
Problem: Article 3 of the Texas Constitution sets up the Texas Legislature. It also does which of the following?
Summarize how the ERA can be ratified and explain why this is the most likely way. You will draw on instances that are important to you
Which amendment to the U.S. Constitution is often called the "States' Rights Amendment" and is commonly used by states to challenge
Mechanisms of State-Led Development:** - **Industrial Policy:** Both countries used targeted industrial policies to support specific sectors, such as electroni