Chapter 2: Problem 8
One of the best indications of a useful theory is that it raises more questions for further experimentation than it originally answered. Does this apply to Dalton’s atomic theory? Give examples.
Chapter 2: Problem 8
One of the best indications of a useful theory is that it raises more questions for further experimentation than it originally answered. Does this apply to Dalton’s atomic theory? Give examples.
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Get started for freeA sample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of hydrogen. If a second sample of chloroform is found to contain 30.0 g of carbon, what is the total mass of chloroform in the second sample?
For each of the following sets of elements, label each as either noble gases, halogens, alkali metals, alkaline earth metals, or transition metals. a. Ti, Fe, Ag b. Mg, Sr, Ba c. Li, K, Rb d. Ne, Kr, Xe e. F, Br, I
What is the systematic name of \(\mathrm{Ta}_{2} \mathrm{O}_{5} ?\) If the charge on the metal remained constant and then sulfur was substituted for oxygen, how would the formula change? What is the difference in the total number of protons between \(\mathrm{Ta}_{2} \mathrm{O}_{5}\) and its sulfur analog?
Identify each of the following elements. Give the number of protons and neutrons in each nucleus. a. \(_{15}^{31} \mathrm{X}\) b.\(^{127}_{53} \mathrm{X}\) c. \(_{19}^{39} \mathrm{X}\) d. \(\stackrel{173}{70} \mathrm{X}\)
A combustion reaction involves the reaction of a substance with oxygen gas. The complete combustion of any hydrocarbon (binary compound of carbon and hydrogen) produces carbon dioxide and water as the only products. Octane is a hydrocarbon that is found in gasoline. Complete combustion of octane produces 8 L of carbon dioxide for every 9 L of water vapor (both measured at the same temperature and pressure). What is the ratio of carbon atoms to hydrogen atoms in a molecule of octane?
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