Plants and animals RE a carbon source during respiration. they take in Oxygen and give out Carbon (IV) oxide as a by product. Combustion of fossil fuels is also source of carbon (IV) Oxide.
Formation of fossils from dead plants and animals is a carbon sink. photosynthesis is also a carbon sink as plants take in carbon (IV) Oxide that is used to make food.
Answer : The number of moles of ions form are, and there are 3 ions formed.
Explanation :
First we have to calculate the moles of calcium iodide.
Molar mass of calcium iodide = 293.9 g/mol
Mass of calcium iodide = 51.0 g
Now we have to calculate the number of moles of ions.
As we know that when calcium iodide dissolved in water then it dissocites to give calcium ion and iodide ion.
The balanced chemical reaction will be:
From this we conclude that there are 3 ions formed.
As, 1 mole of calcium iodide dissociate to give number of ions
So, 0.174 mole of calcium iodide dissociate to give number of ions
Thus, the number of moles of ions form are,
I think that the answer could be A. X and Y
Answer:
pick the second one I've done that test