2 HClO(aq) + Ca(OH)2(aq) = 2 H2O(l) + Ca(ClO)2(aq) is the balanced equation
D. Cannot be broken is correct!
A scientific law cannot be broken is correct because it has been tested so many times it's a known fact. For example Gravity is a scientific law.
Wavelength is the distance between crests of a wave. Wavelength can be calculated by the speed of light divided by frequency
To increase the rate of a reaction, you can either do any of the following:
-increase the temperature
-increase concentration of the aqueous reactant
-increase pressure of the gas
-use a catalyst
-increase surface area of the solid reactant
From these, the engineer should therefore do C. Adding a catalyst speeds up the reaction without really joining the reaction.
