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6. There are three isotopes of silicon. They have mass numbers of 28, 29 and 30. The average atomic mass of silicon is 28.086amu. What does this say about the relative abundances of the three isotopes?
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Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!
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The clouds are grey and ground is wet. a quantitative b qualitative
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Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma
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Kp is the equilibrium constant for dissociation of the propionic acid dimer. what is the sign of the slope for a plot of the natural logarithm of kp vs. inverse temperature for this reaction?
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6. There are three isotopes of silicon. They have mass numbers of 28, 29 and 30. The average atomic...
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