Answer:
The elements of group 0 are referred to as noble or inert gases because they're so "majestic" that, generally, they don't react with anything and we're believed to be rare elements e.g Neon, argon, krypton, xenon and radon.
Explanation:
A cheerful teen willing to help,
stay positive,
stay salty...
<h2>COVALENT BOND</h2>
- What happens to the electrons in a completely covalent bond?
- <u>Covalent bonding</u> <u>occurs when atoms share electron pairs</u>. To increase their stability, atoms will form covalent bonds with other atoms, <u>which is accomplished by forming a full electron shell</u>. By sharing their outermost (valence) electrons, atoms can fill up their outer electron shells and gain stability.
______
How is it, dear? Does it help you? Mhm, I hope it really helps you. Have a nice day!
<h3>#ProvideUniqueAnswers</h3>
Answer: D.Aluminium Oxide 0.10, Magnesium Oxide 0.50
Explanation:
Number of moles of NaOH= number of moles × volume
Number of moles= 100/1000 × 2 = 0.2 moles
Since;
2 moles of NaOH yield 1 mole of Al2O3
0.2 moles of NaOH will yield 0.2 × 1/2 = 0.1 moles of Al2O3.
Number of moles of HCl= 800/1000 × 2 = 1.6 moles
If 1 mole of Al2O3 requires 6 moles of HCl
0.1 moles of Al2O3 requires 0.1 × 6 = 0.6 moles of HCl.
Number of moles of HCl left after reaction with Al2O3 = 1.6- 0.6 = 1 mole
This leftover reacts with MgO
But;
1 mole of MgO reacts with 2 moles of HCl
x moles of MgO reacts with 1 mole of HCl
Thus; x= 0.5 moles of MgO
Answer:
A.......
Explanation: The sun is the main source of energy
