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den301095 [7]
3 years ago
8

Which statement about caves and polluted groundwater is true? A. Cave rock neutralizes the pollutants in the groundwater. B. Wel

ls that tap water in the caves yield the cleanest water. C. Polluted groundwater travels more quickly and easily through caves. D. Caves store the pollutants, thereby keeping them out of human water supplies.
Chemistry
1 answer:
zvonat [6]3 years ago
3 0
Cave rock neutralizes pollutants in groundwater.
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Determine the enthalpy for this reaction: Al(OH)3(s)+3HCl(g)→AlCl3(s)+3H2O(l)
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<span>Important information to solve the exercise :
Substance ΔHf (kJ/mol):
HCl(g)= −92.0 </span><span>kJ/mol
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</span><span>Al(OH)3(s)+3HCl(g)→AlCl3(s)+3H2O(l)
    reactants                         products

products- reactants:</span><span>

(−705.6) + (3 x −285.8) - ( −1277.0 ) - (3 x −92.0 ) = - 10.0 </span>kJ per mole at 25°C
<span>
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6 0
3 years ago
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garik1379 [7]
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