38. what is the chemical formula for sodium nitride?
a. nan
c. na, n
b. na, n
d. nan;

The correct answer is Na3N

Explanation:

Sodium nitride (a neutral salt) is composed of an atom of Sodium (Na) and 2 of Nitrogen (N) with the oxidation number +5, requiring 3 electrons to complete its octet.

11 players on a field that has a maximum of 11 players

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)