Adouble-replacement reaction takes place when aqueous k2so4 reacts with aqueous pb(no3)2. you would expect the products of this reaction to be and

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

What three natural resources are found in the great lakes region

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.