H E L P Nitrogen is collected in gas jar by the downward displacement of water why explain it
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For which one of the following reactions is the value of δh° rxn equal to δh° f for the product? a. 2 h2 (g) + o2 (g) → 2 h2o (l) b. n2 (g) + o2 (g) → 2 no (g) c. 2 h2 (g) + o2 (g) → 2 h2o (g) d. h2o (l) + 1/2 o2 (g) → h2o2 (l) e. none of the above

When the volume and number of particles of a gas are constant which of the following is also constant

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?