60 elements! I don't exactly know every element known, so if you are asking that, please tell us, but what I do know is that there were 60 elements in the periodic table by 1860.
The reduction reaction is the gain of electrons while oxidation reaction is the loss of electrons. For potassium ion(K+), the reaction should be K+ + e- ==> K. So the answer is (1).
<h2><u>
Answer:</u></h2>
C: They should try to reproduce Dr. Maxwell's research to verify his results
<h2><u>
Why?</u></h2>
Other scientists may or may not agree to Dr. Maxwell, so they should test Dr. Maxwell's research again to see if his conclusion is true or not.
Hope this helps!
The B stands for Boron which is 5 on the periodic table.
The O stands for Oxygen which is 8 on the periodic table.
There is 1 Boron, It's only 1 because there is only on B which doesn't have coefficent
There is 2 Oxygen, The 2 is from the 2 next to the O
