Gasoline has an octane number of 70.

What is the percent isooctane to the percent heptane in this sample of gasoline?

Suppose during a lab that 65kJ of energy were transferred to 450 g of water at 20 degree Celsius. What would have been the final temperature of the water

Which statement is true for gases, but not for solids or liquids? A. The particles are in motion. B. The particles rarely touch one another. C. The particles have kinetic energy. D. The particles have a definite volume.

Soil is best described as a pure substance or a mixture or a compound

Which family is most likely to form a 2 + ion?

If you break a glass container in the lab you should?

Water flows at the rate of 0.5 kg/s in a 2.5-cm-diameter tube having a length of 4 m. A constant heat flux is imposed at the tube wall so that the tube wall temperature is always 50°C higher than the water temperature.

Which of the following equations represents a double-displacement reaction? A. FeS (s) + 2HCl (aq) ® H2S (g) + FeCl2 (aq) B. 2Sb (s) + 3I2 (g) ® 2SbI3 (s) C. Zn (s) + H2SO4 (aq) ® ZnSO4 (aq) + H2 (g) D. 2HgO (s) ® 2Hg (l) + O2 (g)

Consider the Williamson ether synthesis between 2-naphthol and 1-bromobutane in strong base. A reaction was performed in which 0.51 g of 2-naphthol was reacted with a slight excess of 1-bromobutane to make 0.29 g of 2-butoxynaphthalene.

How many molecules of n2 are in a 300.0 ml container at 780 mmhg and 135°c?

Why is gas able to flow