Biology help? Thanks! ?

Question

I got a couple of questions I couldn't find the answers too, so can anybody help me.

1.) How many electrons are involved in a double covalent bond?

2.) A solution with pH of of 5 has how many more protons in it than a solution with pH of 7? 5 times as more, 10 times more, 100 times more, or 1000 times more

Thanks for ur help!

Answer 1

Since atoms share electrons in a covalent bond, a single bond will involve two atoms sharing two electrons... A double covalent bond will involve 4 electrons total.

Because each step on the pH scale indicates a tenfold increase or decrease in the amount of ions present... you're moving two steps from 7 to 5 (10 x10 = 100), so 100 times more protons would be the appropriate response.