A stream of a certain liquid compound is attracted to an electrically charged rod. The compound is probably
a. metallic.
b. nonpolar covalent.
c. ionic.
d. polar covalent.
d
You might also like to view...
Radiation Activity: The half-life of radioactive iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity of 1.0 ?Ci? (1 Ci = 3.70 × 1010 Bq)
A. 2.9 × 109 B. 4.6 × 109 C. 3.7 × 1010 D. 7.6 × 1012
When a jet airplane takes off, how is momentum conserved?
a. Momentum is conserved because the jet of hot air pushes on the atmosphere around it. b. Momentum is conserved because the air rushing out of the jet engine is moving out in the direction opposite to the plane's movement. c. Momentum is not conserved because the jet was motionless and is now moving. d. Momentum is conserved because molecules in the air move on average in all directions. e. Momentum is conserved because the jet is collecting oxygen from the atmosphere.
A 3.00-m-long ladder, weighing 200 N, rests against a smooth vertical wall with its base on a horizontal rough floor, a distance of 1.00 m away from the wall
If the center of mass of the ladder is 1.20 m from its base, what frictional force must the floor exert on the base of the ladder in order for the ladder to be in static equilibrium? A) 93.3 N B) 130 N C) 28.3 N D) 102 N E) 150 N
An s state (l = 0 ) energy level is split into two levels by an applied magnetic field. A photon of microwave radiation having frequency 60 GHz induces a transition between the two levels
What is the magnitude of the applied magnetic field? (h = 6.626 × 10-34 J ? s, Bohr magneton = ?B = 9.27 × 10-24 J/T) A) 0.34 T B) 2.1 T C) 1.2 T D) 2.8 T E) 13 T