Calculate the wavelength and energy of light that has a frequency of 1.78 x 10^15 Hz.

What type of reaction is zn + cucl2 → cu + zncl2?

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

An unknown substance has been shown to have metallic bonds. which of the following is most likely a property of this substance? a. low conductivity b. low boiling point c. high malleability d. high solubility in water