On average, women and girls in developing countries walk 6 kilometers (approximately 3.5 miles) a day, carrying 20 liters (approximately 42 pounds/20 kgs) of
water. In some areas, it is common for this journey to take more than 15 hours a week. 1
L = 0.26 gal. If you had to carry 20 liters of water, how many gallons would that be
equivalent to?

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.

Are oil and water a mixture or solution