Chapter 2: Problem 17
Which of the following explain how an ion is formed? Explain your answer. a. adding or subtracting protons to/from an atom b. adding or subtracting neutrons to/from an atom c. adding or subtracting electrons to/from an atom
Chapter 2: Problem 17
Which of the following explain how an ion is formed? Explain your answer. a. adding or subtracting protons to/from an atom b. adding or subtracting neutrons to/from an atom c. adding or subtracting electrons to/from an atom
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Get started for freeReaction of 2.0 \(\mathrm{L}\) of hydrogen gas with 1.0 \(\mathrm{L}\) of oxygen gas yields 2.0 \(\mathrm{L}\) of water vapor. All gases are at the same temperature and pressure. Show how these data support the idea that oxygen gas is a diatomic molecule. Must we consider hydrogen to be a diatomic molecule to explain these results?
The early alchemists used to do an experiment in which water was boiled for several days in a sealed glass container. Eventually, some solid residue would appear in the bottom of the flask, which was interpreted to mean that some of the water in the flask had been converted into “earth.” When Lavoisier repeated this experiment, he found that the water weighed the same before and after heating, and the mass of the flask plus the solid residue equaled the original mass of the flask. Were the alchemists correct? Explain what really happened. (This experiment is described in the article by A. F. Scott in Scientific American, January 1984.)
In the periodic table, how many elements are found in each of the following? a. the halogen family b. the alkali family c. the lanthanide series
Give the systematic name for the following compounds that are found in everyday life: a. \(\mathrm{H}_{2} \mathrm{S}\) (rotten egg smell) b. \(\mathrm{SO}_{2}\) (smell of burnt matches) c. \(\mathrm{SF}_{6}\) (aerosol can propellant) d. \(\mathrm{Na}_{2} \mathrm{SO}_{3}\) (dried fruit preservative)
In the periodic table, how many elements are found in each of the following? a. Group 2A b. the oxygen family c. the nickel group d. Group 8A
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