Chemistry, 26.12.2019 17:31 user11883661
Calculate ∆g ◦ r for the decomposition of mercury(ii) oxide 2 hgo(s) → 2 hg(ℓ) + o2(g) ∆h◦ f −90.83 − − (kj · mol−1 ) ∆s ◦ m 70.29 76.02 205.14 (j · k −1 · mol−1 ) at 298 k. 1. −117.1 kj · mol−1 2. +246.2 kj · mol−1 3. −64.5 kj · mol−1 4. +117.1 kj · mol−1 5. −246.2 kj · mol−1
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Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?
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According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.
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Scientists have developed an explanation of a phenomenon from several verified hypotheses. the explanation has been confirmed through numerous experimental tests.which option best describes this explanation? a. scientific lawb. research questionc. hypothesisd. scientific theory
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Calculate ∆g ◦ r for the decomposition of mercury(ii) oxide 2 hgo(s) → 2 hg(ℓ) + o2(g) ∆h◦ f −90.83...
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