Q: What is a compound? What are compounds composed of? What
What is a compound? What are compounds composed of? What is true about the composition of a compound, no matter where we happen to find the compound?
See AnswerQ: On the planet Xgnu, the most common units of length are
On the planet Xgnu, the most common units of length are the blim (for long distances) and the kryll (for shorter distances). Because the Xgnuese have 14 fingers, perhaps it is not surprising that 1400...
See AnswerQ: You pass a road sign saying “New York 110 km.”
You pass a road sign saying “New York 110 km.” If you drive at a constant speed of 100. km/h, how long should it take you to reach New York?
See AnswerQ: Certain elements have special affinities for other elements. This causes them
Certain elements have special affinities for other elements. This causes them to bind together in special ways to form .
See AnswerQ: Suppose your car is rated at 45 mi/gal for highway
Suppose your car is rated at 45 mi/gal for highway use and 38 mi/gal for city driving. If you wanted to write your friend in Spain about your car’s mileage, what ratings in kilometers per liter would...
See AnswerQ: You are in Paris, and you want to buy some peaches
You are in Paris, and you want to buy some peaches for lunch. The sign in the fruit stand indicates that peaches are 2.76 euros per kilogram. Given that there are approximately 1.44 euros to the dolla...
See AnswerQ: For a pharmacist dispensing pills or capsules, it is often easier
For a pharmacist dispensing pills or capsules, it is often easier to weigh the medication to be dispensed rather than to count the individual pills. If a single antibiotic capsule weighs 0.65 g, and a...
See AnswerQ: On the planet Xgnu, the natives have 14 fingers. On
On the planet Xgnu, the natives have 14 fingers. On the official Xgnuese temperature scale (°X), the boiling point of water (under an atmospheric pressure similar to earth’s) is 140 °X, whereas water...
See AnswerQ: For a material to float on the surface of water, the
For a material to float on the surface of water, the material must have a density less than that of water (1.0 g/mL) and must not react with the water or dissolve in it. A spherical ball has a radius...
See AnswerQ: Elemental bromine is a dense, dark-red, pungent-
Elemental bromine is a dense, dark-red, pungent-smelling liquid. Are these characteristics of elemental bromine physical or chemical properties?
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