Answer:
in position and time graphs the slope of line indicates the velocity
It means <span>a substance formed by chemical union of 2 or more elements or ingredients in definite proportion by weight.</span>
It would be the Aqueous solution
<span>The symbol for hydronium ion concentration is H+. </span><span>There are quite a few
relationships between [H+] and [OH−]
ions. And because there is a large range of number between 10 to 10</span><span>-15</span><span>
M, the pH is used. pH = -log[H+] and pOH = -log[OH−]. In aqueous solutions, </span><span>[H+
][OH- ] = 10-14. From here we can derive the values of each concentration.</span>
PH=-lg[H⁺]
[H⁺]=2.88*10⁻² mol/L
pH=-lg(2.88*10⁻²)=1.54
pH=1.54