given that the ksp for caf2 at 25°c is 3.9 × 10–11, will a precipitate form when 0.10 l of 2.3 × 10–4 m cacl2 is added to 0.50 l of 5.0 × 10–3 m naf? assume volumes are additive.

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance

What is a good example of instantaneous speed

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?