Use the equation and bond energies to answer the question. 2H₂O ⇒ 2H₂ + O2
H-O: 467 kJ/mol
H-H: 432 kJ/mol
O=O: 495 kJ mol

What is the total energy of the reaction? Is this an endothermic or exothermic reaction?

A. -509 kJ/mol, endothermic
B. 509 kJ/mol, endothermic
C. -509 kJ/mol, exothermic
D. 509 kJ/mol, exothermic

(Energy in Chemical Reaction Unit I test)

Aconductor easily transfer heat

Its a hope this

1. why does the same side of the moon always face earthc.the rotational period of the moon is equal to one revolution around earth2. which is greater the moons period of rotation or its period of revolution  b.the moons revolution period around earth3.what was the major accomplishment of the apollo missions  c.sending the first human into space4. which of these space missions involved the deployment of lunar roversa. voyager 15. which scientists are going to explore next on kepler-186fd. evidence of existence of life6.which mission is not going to explore the outside of the solar  systemb.safir7.which technology limit the future of space explorationb. scientist must first develop certain technologies before missions can be completed.

The reaction 2kalsi3o8 + 2(h+ + hco3-) + h2o  →  al2si2o5(oh)4 + 2k+ + 2hco3- + 4sio2 shows that feldspar kalsi3o8 is chemically altered by hydrolysis to form chalky-looking clay mineral kaolinite al2si2o5(oh)4. the chemical breakdown of potassium feldspar due to exposure to acidic water results to the mineral binding with the water molecule to become kaolinite with silica and potassium and bicarbonate ions in solution.