An acid (A) reacts with a base (B) to produce the salt KNO₃. What are the most likely acid (A) and base (B) that formed this product? 1. A = HNO₃; B = KOH
2. A = HNO₂; B = Ca(OH)₂
3. A = HNO₂; B = KOH
4. A = HNO₃; B = Ca(OH)₂

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

When a septic tank backs up a goes in to clean it out

Categorize them by metal, nonmetal, in periodic tableductilenon-ductilemalleableoften gain electrons easilygood conductorpoor conductorcan be liquidselements