Which equations are balanced? Check all that apply. Mg3N2 H2O → 3MgO 2NH3 C3H8 5O2 → 4H2O 3CO2 Zn 2HCl → ZnCl2 H2 3Ca(OH)2 2H3PO4 → Ca3(PO4)2 6H2O 3H2SO4 2Fe → Fe2(SO4)3 H2 4Al 3O2 → 2Al2O3

In an ecosystem, marsh snails feed on phytoplankton and painted turtles feed on marsh snails. pollution has resulted in the depletion of phytoplankton. what effect would this situation likely have on the population of marsh snails and painted turtles? as phytoplankton were destroyed, the population of marsh snails would most likely then the population of painted turtles would mostly likely a. 1. increase 2. decrease 3. stay the same b. 1. increase 2. decrease 3. stay the same

Healing after the death of a loved one is most difficult when: a) the bereaved is not allowed to mourn in the way he or she wishes b) the death is a long, protracted one c.) a period of grief has already elapsed d) no other mourners are present

During a load test, a battery's voltage drops below a specified value. what action should the technician take?