In a lab experiment monitoring the change in concentration of a reddish-brown substance, FeNCS2+, a wavelength of 455 nm is used.

a. Does this wavelength agree with your conclusions about beam color, solution color, and absorbance above? Why or why not?

b. What other wavelengths might you consider using for FeNCS2+ spectroscopy?

Which is true of the reactants in this displacement reaction? fe + 2hcl fecl2 + h2 a. the reactants are located to the left of the arrow in the chemical equation. b. the reactants contain 1 iron atom, 2 hydrogen atoms, and 1 chlorine atom. c. the reactants are the atoms, molecules, or compounds formed in the reaction. d. the reactants have the same physical and chemical properties as the products.

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

Using the thermodynamic information in the aleks data tab, calculate the standard reaction free energy of the following chemical reaction: →+p4o10s6h2ol4h3po4s round your answer to zero decimal places.