In a cold pack, which type of reaction draws heat from the surroundings?
1 answer:
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Explanation :
The balanced chemical reaction is,
The expression for the rates of consumption of the reactants are:
The rate of consumption of =
The rate of consumption of =
The rate of consumption of =
The expression for the rates of formation of the products are:
The rate of consumption of =
The rate of consumption of =
Answer:
Explanation:
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In this case, since 12.75 g of calcium iodide has the following number of moles (molar mass = 293.89 g/mol):
In such a way, since 1 mole of calcium iodide contains 2 moles of atoms of iodine, and one mole of atoms of iodine contains 6.022x10²³ atoms (Avogadro's number), we compute the resulting atoms as shown below:
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