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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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klcarrasquillo klcarrasquillo
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5 years ago
According to the following thermochemical equation, what mass of HF (in g) must react in order to produce 345 kJ of energy?  Assume excess SiO2.

SiO2(s) + 4 HF(g)    SiF4(g) + 2 H2O(l)Hrxn = -184 kJ

A) 42.7 g
B) 37.5 g
C) 150. g
D) 107 g
E) 173 g
Textbook 
Chemistry: A Molecular Approach

Chemistry: A Molecular Approach


Edition: 4th
Author:
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kristen_m17kristen_m17
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5 years ago
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klcarrasquillo Author
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5 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
jodie1
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Yesterday
Smart ... Thanks!
amandamraz
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2 hours ago
Just got PERFECT on my quiz
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