Which elements can form triple covalent bonds in organic ...

[BRWH]

Which elements can form triple covalent bonds in
  organic substances?
   a) oxygen and bromine.
   b) sulfur and hydrogen.
   c) nitrogen and carbon.
   d) fluorine and chlorine.

Question 2

Three particles are placed in the xy plane. A 40-g particle is located at (3, 4) m, and a 50-g particle is positioned at (2, 6) m. Where must a 20-g particle be placed so that the center of mass of this three-particle system is located at the origin?
 a. (1, 3) m
  b. (1, 2) m
  c. (1, 12) m
  d. (1, 7) m
  e. (1, 3) m

[lgoldst9]

Answer to Question 1

c

Answer to Question 2

d

[BRWH]

Excellent

[chereeb]

Thanks for the timely response, appreciate it