After an airbag deploys in a car, free sodium metal is present. This reacts with Fe203 to produce Na20 in the following reaction Na + Fe203 - Na2O + Fe The energy required to break the bonds in the reactants is 824 kJ/mol and the energy released when products form is
416 kJ/mol. Is this reaction endothermic or exothermic and what is the AHrxn?
Endothermic
AHrxn = 424 kJ
O Exothermic
AHrxn = -424 kJ
O Endothermic
AHrxn = 2070 kJ
O Exothermic
AHrxn = -2070 kJ

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )

that tool would be a compass

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.