Answer: Multiple covalent bonds may occur in atoms that contain carbon,nitrogen, or <u><em>oxygen</em></u>.
<span>It can be used by scientists everywhere its important to have the International System of Units.</span>
Answer:
2:1<em><u> </u></em><em><u> </u></em><em><u>of </u></em><em><u> </u></em><em><u>Tc </u></em><em><u>in </u></em><em><u>the</u></em><em><u> </u></em><em><u>periodic</u></em><em><u> table</u></em>
I think it is D but i'm not sure
hope I helped :)
Carbon is the answer. all hydrocarbures have to contain carbon.
