Answer:
Explanation:
The decomposition of follows the equation
By definition, the rate of a chemical reaction can be expressed by
The rate of appearance of is related to the rate of disappearance of by the stoichiometry. This means that, for each mole of that appears 2 moles of are consumed. So
An ELEMENT is a substance that cannot be broken down into other substances by ordinary chemical procedures. Some easy examples would be: <span>gold, iron, carbon, </span>hydrogen<span>, </span>oxygen<span>, nitrogen.</span>
Answer:
i need to know the question then i can help :)
Explanation:
Answer:
Explanation:
18.01528 g/mol. I googled this, but it would be 16 for O plus 2 for the 2 H's. 18 g/mol divided by 12.5g=1.44 mol of H20.
1.44mol* molecules/mol= 8.6688*10^23.
Answer:
-586.56 kJ/mol is the standard enthalpy of the 3rd reaction.
Explanation:
...[1]
...[2]
..[3]
The unknown standard enthalpy of third reaction can be calculated by using Hess's law:
The law states that 'the heat absorbed or evolved in a given chemical equation is the same whether the process occurs in one step or several steps'.
[2] - 2 × [1] = [3]
The standard enthalpy of the 3rd reaction is -586.56 kJ/mol.The negative sign indicates that energy is released during this reaction.