Ais a group of atoms that remains bonded together and behaves as a single atom in a chemical reaction. functional group radical hydrocarbon hydroxide

radical

Explanation:

A radical is group of atoms. Some common examples of radicals are the OH- (hydroxide ion), NO₃⁻ (nitrate ion) and more.  

Cu + 2HNO₃ →Cu(NO₃)₂  + H₂

In this single replacement reaction, the nitrate ion (NO₃⁻) which is the radical is replaced from nitric acid to form copper nitrate.  

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

answer: lol

explanation:

lol