Asealed box was found which stated to have contained an alloy composed of equal parts by weight of two metals a and b. these met als are radioactive, with half lives of 12 years and 18 years, respectively and when the container was opened it was found to contain 0.53 kg of a and 2.20 kg of b. deduce the age of the alloy.
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The bubbles in a carbonated soft drink are produced when carbonic acid decomposes to form carbon dioxide and water. in a closed system, this equilibrium exists as why does a carbonated soft drink lose carbonation when the container is left open? a.water evaporates, which favors the formation of h2co3. b.pressure decreases, which favors the formation of h2co3. c.the open container warms up, which causes more gas to escape. d.co2is removed, which favors the formation of h2co3.
Answers: 2
Asealed box was found which stated to have contained an alloy composed of equal parts by weight of t...
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