Balance NH3+HCl to NH4Cl

After a long night of cramming for a test, your college room-mate hits his head forcefully against the wall of your room in despair. According to Newton's 3rd Law, as he exerts a force against the wall, there must be an equal and opposite force.

Which are examples of transverse waves earthquakes P-waves earthquake S-waves radio waves sound visible light X-Rays

How do the parallel magnetic "stripes" near mid-ocean ridges form?

Where in the laboratory is long, unrestrained hair most likely to be a safety concern?

Why would the lower layers in the sedimentary rock be older than the upper layers in the same rock?

Anything dissolved in water

Length of two cylinders are measured to be L1 = 5.62 + / - 0.01cm and L2 = 4.34 + / - 0.02cm. calculate difference in error and error limit.

If you push an object twice as far while applying the same force, you do ...

Jane, looking for tarzan, is running at top speed (5.2 m/s) and grabs a vine hanging 4.5 m vertically from a tall tree in the jungle. how high can she swing upward?

What is p in physics?