What is the enthalpy of the double replacement reaction between LICI and NaF?
Compound-Enthalpy AH
NaF -928
KF -826
LIF -1047
NaCl -788
КСІ -719
LICI -854
LICI + NaF > LIF+ Naci
A.53
B.-53
C. -1909
D.-2909

If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 kelvin and 1.21 atmospheres? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)

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15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.