In a single replacement reaction, what will a metal always replace?

A metalloid

B nonmetal

C metal

What happens to the particles in a medium when waves propagate through the medium

The size of a quantity is called: Attitude Longitude Magnitude Vector None of these

What is the refractive index of a solution that has a critical angle of 40.8° with respect to air? The refracting index of air is 1.00.

American football is played on a 100 yd100 yd long field, excluding the end zones. What is the length? L of the field in meters? Assume that 1 m equals 3.281 ft. 3.281 ft.

When you drop a ball it accelerates downward at 9.8 m/s2. If you instead throw it downward, then its acceleration immediately after leaving your hand, assuming no air resistance, is a. 9.8 m/s2. b. more than 9.8 m/s2. c. less than 9.8 m/s2. d.

How do you know that a speedometer tells you the instantaneous speed of a car?

Margaret swam 100 meters in 5 minutes. What was her swimming speed? 100 meters per minute 50 meters per minute 20 meters per minute

A car traveled 112.0m in 24.500s, what was a car's average speed?

Hot coffee in a mug cools over time and the mug warms up. Which describes the energy in this system?

A mirror what a flat surface is a a.) convex mirror b.) concave mirror c.) plane mirror d.) virtual mirror