Answer:
Explanation:
Group Most Likely Ionic Charge Number of Valence Electrons
I +1 1
II +2 2
III +3 3
IV +4 or -4 4
V -3 5
VI -2 6
VII -1 7
VIII 0 8
For elements in group IV and above, their ionic charge is (8-number of their valence electrons.)
Answer:
224 grams of O₂
Explanation:
This is the reaction:
2 C₂H₆ (g) + 7 O₂(g) → 4 CO₂ (g) + 6 H₂O (g)
2 moles of ethene react with 7 moles of oxygen.
Let's convert the ethene's mass into moles (mass / molar mass)
60 g / 30 g/m = 2 mol
So, if 2 moles of ethene must react with 7 moles of O₂ and we have 2 moles, obviously we would need 7 moles of oyxgen.
Let's convert the moles to mass ( mol . molar mass)
7 m . 32 g/m = 224 grams
Plants<span> have two </span>transport<span> systems to move food, </span>water and minerals<span> through their roots, stems and leaves. These systems use continuous tubes called xylem and phloem, and together they are known as </span>vascular<span> bundles. Thank you for your time and I hope this has helped you. See you next time brainy:)</span>
<span>To solve this question, you need to find the equation of the reaction. I assume that the equation look like this:
2NaBr+F2</span>→<span>2NaF+<span>Br<span>2
In the equation, you can see that every 1 F2 molecule there used there will be 2 NaF(sodium fluoride) formed. So, the number of </span></span></span>sodium fluoride produced would be: <span>0.480 mol * 2= 0.96 moles</span>
Answer: Chlorine I think
Explanation:
Chlorine is added to the water to kill germs. When it is added to a swimming pool, it forms a weak acid called hypochlorous acid that kills bacteria like salmonella and E.