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Calcium Hydride ( )Reacts with Water to Form Hydrogen

Question 164

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Calcium hydride ( Calcium hydride (   ) reacts with water to form hydrogen gas: CaH<sub>2</sub>(s) + 2 H<sub>2</sub>O(l) → Ca(OH) <sub>2</sub>(aq) + 2 H<sub>2</sub>(g)  How many grams of   are needed to generate 45.0 L of   gas at a pressure of 0.888 atm and a temperature of 32°C? A)  47.5 g B)  0.798 g C)  134 g D)  33.6 g E)  67.2 g ) reacts with water to form hydrogen gas: CaH2(s) + 2 H2O(l) → Ca(OH) 2(aq) + 2 H2(g)
How many grams of Calcium hydride (   ) reacts with water to form hydrogen gas: CaH<sub>2</sub>(s) + 2 H<sub>2</sub>O(l) → Ca(OH) <sub>2</sub>(aq) + 2 H<sub>2</sub>(g)  How many grams of   are needed to generate 45.0 L of   gas at a pressure of 0.888 atm and a temperature of 32°C? A)  47.5 g B)  0.798 g C)  134 g D)  33.6 g E)  67.2 g are needed to generate 45.0 L of Calcium hydride (   ) reacts with water to form hydrogen gas: CaH<sub>2</sub>(s) + 2 H<sub>2</sub>O(l) → Ca(OH) <sub>2</sub>(aq) + 2 H<sub>2</sub>(g)  How many grams of   are needed to generate 45.0 L of   gas at a pressure of 0.888 atm and a temperature of 32°C? A)  47.5 g B)  0.798 g C)  134 g D)  33.6 g E)  67.2 g gas at a pressure of 0.888 atm and a temperature of 32°C?


A) 47.5 g
B) 0.798 g
C) 134 g
D) 33.6 g
E) 67.2 g

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