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Is potassium (k) more similar to rubidium (rb) or calcium (ca)? why? a: calcium because it has one more proton than potassium while rubidium has 18 more protons than potassium. b: rubidium because they have the same number of valence electrons c: calcium because it has one more valence electron than potassium d: rubidium because they have the same number of electrons.
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How many moles of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide
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The rate constant for the reaction below is 6.2 x 10−5 mol l−1 s −1. if the initial concentration of a is 0.0500 m, what is its concentration after 115 s?
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Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas
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Is potassium (k) more similar to rubidium (rb) or calcium (ca)? why? a: calcium because it has on...
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