Answer:
Explanation:
in the decomposition of gallium chlorate, 75.0grams is heated to produce oxygen and gallium chloride.
Answer: see the photo attached. (:
Explanation:
We calculate the amount of carbon fixed as follows.

=
kg
= -1273.1 kJ/mol
= -393.5 kJ/mol
= -285.8 kJ/mol
Hence, total
reaction will be as follows.

= 
= 2802.7 kJ/mol
Therefore, calculate the number of moles of fixed carbon as follows.

= 
= 
Thus, we can conclude that the annual enthalpy change resulting from the photosynthetic carbon fixation over the land surface is
.