What element never forms doubl and triple bonds

The is a particle with one unit of positive charge a. proton b. positron c. electron d. nucleus awnser quick it is a important science test!

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

In order to complete this lab. you will need to be familiar with some common chemistry terms. complete the chemical change puzzle and list the relevant terms and their meaning below a.rectant b.product c.supernate