The standard internal energy change for a reaction can be symbolized as δ∘rxn or δ∘rxn. For each reaction equation, calculate the energy change of the reaction at 25 ∘c and 1. 00 bar. Sn(s)+2cl2(g)⟶sncl4(l)δH∘rxn=−511. 3 kj/mol.

Berikan satu kepentingan terhadap komposisi udara di atmosfera bumi

In 1999, the u. s. announced trade sanctions worth $116.8 million, targeting goods from france, germany, italy and denmark. the sanctions were in retaliation for a ban on u. s. hormone-treated beef by which organization?

Nathan is an ecologist. he’s studying the effect of secondary consumers on primary consumers. his current research focuses on a population of blue jays and crows. they eat caterpillars and mice. if the number of blue jays increases, what are the likely effects on other populations? 1the number of crows will increase. 2the number of mice will decrease. 3the number of mice will remain the same. 4the number of caterpillars will decrease.