Which of the following lenses is a converging lens?
a. plano-concave lens
b. convexo-concave lens
c. spherical-convex lens
d. double-convex lens

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

Acandle’s wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. the wick is usually surrounded by wax. which is the most important property of covalent compounds that makes them useful for making candle wax? a low boiling point a low melting point a high boiling point a high melting point

What atom has the largest atomic radius