Answer:
noble gases Ithink this is the answrr
Wave speed = frequency x wavelength
= 50 x 0.1
= 5 m/s
Hope this helps!
Answer:
the atoms of the original substances gain, lose and even share their very own electrons. write the symbols of the elements that form the compound. Write down the valency, and lastly go over valencies. This is all I got so far. I hope this helps
Explanation: