A cube has a volume of 8.0 cm3 and a mass of 21.6 grams. ... using an electronic analytical balance. ... graduated cylinder ... The density of iron is 7.87 g/mL.
What is the question? Because that’s true
Answer:

Explanation:
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In this case, according to the given chemical reaction, it is possible to calculate the enthalpy change of the reaction via:

Since the enthalpy of formation of oxygen is 0. Thus, given the enthalpies of formation of gaseous carbon dioxide and water, we obtain:

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Answer: The reaction rate will INCREASE
Explanation: enzymes are not consumed by the reaction they catalyse, enzyme assay usually follow changes in the concentration of substrate or product to measure the rate of reaction. Now the cys active site contains thiolate ion which will increase on increase of the pk from 8 to 10. Hence increasing the rate of reaction which is catalysed by the active form of the enzyme.