Based on the number of valence electrons, what is the correct formula when nitrogen bonds to hydrogen?

A) NH2

B) NH3

C) NH4

D) N2H

What is one function of courtship behavior

The Hubble Space Telescope (HST) orbits 569,000m above Earth's surface. Given that Earth's mass is 5.97 * 10^24 kg and its radius is 6.38 * 10^6 m, what is HST's tangential speed?

6. Given that white light contains all colors of the spectrum, what growth result would you expect under white light?

If the sun in 148 million kilometers from the earth, how many minutes will it take the light from the sun to reach the earth?

Identify which phase of matter would transmit light waves the fastest, and why? A) The gas would transmit the fastest because the particles move the fastest. B) The solid would transmit the fastest because the particles are closest together.

A ramp with a mechanical advantage of 8 lifts objects to a height of 1.5 meters how long is the ramp

Sodium, atomic number 11, forms an ionic bond with an atom of an unknown element. What is one possible choice for the ther element in the compound?

A ship leaves the island of Guam and sails a distance 255 km at an angle 49.0 o north of west. Part A: In which direction must it now head so that its resultant displacement will be 125 km directly east of Guam?

What is the molecular geometry of a methane (CH4) molecule?

Why do scientist use radioactive decay to figure out how old stuff is