The complete combustion of ethanol, c2h50h (fw = 46.0 g/mol), proceeds as follows: c2h50h (l) + 3 02 (g) - --→ 2 c02 (g) + 3 h20 (l) llh = - 555 kj what is the enthalpy change for combustion of 4.0 moles of c2h50h?

What is the pH of a 2.5 x 10-5 M solution of HCI?

In a flashlight, many parts work together as a system. which of the following parts is considered the output in this particular system? A. the switch B. light C. the light bulb D. the batteries

A weather forecast shows 35 m/h on the weather map. Which weather component does this number represent? A. Humidity B. Precipitation C. Wind direction D. Wind speed

What does henry miller mean when he says "Life moves on, whether we act as cowards or heroes"?

To treat certain forms of cancer, physicians may choose to irradiate the body with high-energy radiation. Why does this therapy work?

A type of rock that undergoes changes because of heat and pressure

How many milliliters of a 1.25 molar HCL solution would be needed to react completely with 60 g of calcium metal Ca+2HCl - - > CaCl2 + H2

What mass of copper is required to replace silver from 4. oog ogre silver nitrate dissolved in water

What kind of bond would two nonmetals typically make?

Which statement best applies collision theory to preventing a dangerous reaction from occurring? Store the reactants together at a low pressure. Keep all sparks or flames away from the reactants. Store the reactants together at a low temperature.