Which element can form straight chains, branched chains, and rings

Why will dropping an iron magnet on a concrete sidewalk make it a weaker magnet?

If a man has a mass of 83 kilograms on Earth what will the force of gravity on his body be in the moon

When atoms get more and more energy, they can ionize. What can happen to a gas as more energy is added to its atoms?

Alternating current is normally produced by a

The density of mercury is 13.54 g/cm^3. Suppose you need 40gm of mercury for an experiment. What volume of mercury do you need? A. 2.95 cm^3 B. 541.60 cm^3 C. 26.46 cm^3

Voltage can exist without A. current. B. resistance. C. a closed circuit. D. all of these

During a football game, a receiver has just caught a pass and is standing still. Before he can move, a tackler, running at a velocity of 2.60 m/s, grabs and holds onto him so that they move off together with a velocity of 1.30 m/s.

What effect does an increase in temperature have on viscosity?

Aman tosses a jart upward with a velocity of 14.1 m/s a 60° angle

Describe accuracy, precision and best fit line.