If an atom of nitrogen binds wit three hydrogen atoms to form a molecule of ammonia, how many lone pairs of electrons does nitrogen have?

A. One

B. Three

C. Four

D. Five

The word "radiation" has a negative meaning for many people. Devise an argument to illustrate the positive aspects of radiation.

What type of themometer would you use to take your temperature

Difference between Daniel and Leclanché cells

The student in item 1 moves the box up a ramp inclined at 12° with the horizontal. if the box starts from rest at the bottom of the ramp and is pulled at an angle of 25.

Are Racer car accelerates on a straight road from rest to a speed of 180 km per hour in 25 seconds assuming uniform acceleration of the card throughout find the distance covered in this time

A 3 μf capacitor is connected to a 6 v battery. what is the charge on each plate of the capacitor?

What are some reasons we put orbiting spacecraft up into the atmosphere?

Critical thinking! Applying Concepts A desk exerts an upward force to support a computer resting on it. Does this force do work? Explain.

When an inclined plane is used, A. the mechanical advantage increases as the height increases. B. a smaller force is exerted over a longer distance. C. a negative mechanical advantage can result. D. a greater force is exerted over a shorter distance

A 4-kg cat is resting on a bookshelf that is 3m high. What is the cats gravitational potential energy relative to the floor if the acceleration due to gravity is 9.8m/s squared