Answer:
Q1: 9
Q2:10
Q3: 50
Q4:True
Q5: False
Q6:False
Q7:True
Explanation: Just took the quiz
The atomic number is 9 Ions have the same atomic number since atomic number signifies number of protons not electrons
Since a water molecule is H2O, you would divide 126 hydrogen molecules by 2, and you would get 63. That means you have 63 double hydrogen molecules, and 58 oxygen molecules to pair up with them. So that means you could have 58 molecules of water, with 5 double hydrogen molecules, so basically 10 extra molecules of hydrogen along with the H2O molecules. Hope I helped! :)
<span> By definition, </span>oxidation number<span> is the charge left on the given atom when all the bonding pairs (of electrons) are broken, so the oxidation number of Br will be +1</span>
