<span>the answer is
C. The bar for very low concentration is twice the height of the bar for medium concentration.
proof
</span>
<span>
</span>
<span>Medium--------------------15
</span>Very Low-------------------30 = 2<span /> x 15 (<span>Medium)
</span>
K, Mg, P, and O in increasing electronegativity. Use the chart attached below to reference for similar questions.
Sulfuric, hydrochloric, and nitric are all Strong acids.
B, acetic acid is the Weak acid out of these choices.
Usually strong acids dissociates (separate/fall apart) in a solution.
Whereas weak acids tend to recombine in a acid or in a sense heal/mend back together.
That's how you can tell each apart.
I hope this helps!!
Molecular weight of HBr = 80.91 g/mol.
We know that, 1 mole of HBr = 80.91 g/mol
Therefore, 2 mole of HBr = 80.91 x 2
= 161.82 g.
Hence, 161.82 g of HBr should be dissolved in 1 liter solution, to obtain 2 M solution.
Neutrons : 146
Protons : 95
Electrons : 95
