Use the following data taken at 298 K A+B —> X 72
B+C → Y. 78
A+2C —>z. 36

to predict the standard enthalpy of reaction (in kJ/mol) for
Z + 3B —— X + 2Y

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Which statement best describes the flow of energy in this scenario

How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it