What are the products of the double-replacement reaction between potassium bromide and silver nitrate? name the resulting compound(s) (2 points)

The consumption of fossil fuels could be

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

What are atoms of the same element with varying number of neutrons