Examlex
The enthalpy of formation of H2O(l) is −285.8 kJ/mol.What is the enthalpy change if 1.62 g H2(g) reacts with 9.21 g O2(g) to form H2O(l) ?
Mountain Pine Beetles
Small beetles that bore into and kill pine trees by laying eggs under the bark, often leading to large-scale forest damage.
Appalachian Mountains
A mountain range in eastern North America, extending from Canada to Alabama, known for its biodiversity and coal reserves.
Western Canada
A region of Canada that includes the provinces of British Columbia, Alberta, Saskatchewan, and Manitoba, known for its diverse landscapes and economies.
DDT
Dichloro-Diphenyl-Trichloroethane, a synthetic insecticide known for its environmental persistence and its role in the decline of certain wildlife populations before restrictions were placed on its use.
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