Answer:
Noble gases
Explanation:
Noble gases are nonreactive, nonmetallic elements in group 18 of the periodic table. As you can see in the periodic table in the figure below, noble gases include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).18 Jun 2021
<u>Answer:</u> The equilibrium concentration of chloride ions in the solution is 4.532 M
<u>Explanation:</u>
We are given:
Initial molarity of = 0.054 M
Initial molarity of HCl = 4.60 M
Equilibrium molarity of = 0.034 M
The chemical equation for the reaction of and HCl follows:
Or,
<u>Initial:</u> 0.054 4.60
<u>At eqllm:</u> 0.054-x 4.60-2x x 6x
Evaluating the value of 'x':
So, equilibrium concentration of = (4.60 - 2x) = [4.60 - 2(0.034)] = 4.532 M
Hence, the equilibrium concentration of chloride ions in the solution is 4.532 M
The answer is most likely A. Instructions for inherited traits.
Answer: option B - 2 K + MgBr2 = 2 KBr + Mg
Explanation:
2K + MgBr2 --> 2 KBr + Mg
On Left side: 2moles of Potassium (K) reacts with 1 mole of MgBr2
On Right side: 2 moles of KBr and 1 mole of Mg.
You will observe that the coefficient of each element on left side and Right side is balanced in option B, unlike other options.
So, option B is the answer.