Calculate the energy and wavelength of a photon of light with a frequency of 3.568×10^14hz

How many grams of n2h4 will be consumed by 23 g of n2o4

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

Correct relationship between molecular formula and empirical formula