Answer:
Si tú puedes 1-2-3-4-5-6-7-8-9-10 eso debes de ser más bien dicho sacaran Club Ojalá que te ayude Chau
Explanation:
de Ojalá que te ayude No te olvides de sacar todas las preguntas esas lo que tú dijiste y si tú promoción 123 saquen globo que quieras tú
Answer:
Chemical Change
Explanation:
Physical change normally mean that the change can revert back to its orginal state, which in this case that is not possible therfore it is a chemical change.
Answer: Atomic number, atomic mass, and relative atomic mass
Explanation:
I believe the answer is C because the first two are mechanical hazards and C mentions plug which is electrical.
Answer is: pH value of weak is 3.35.
Chemical reaction (dissociation): HA(aq) → H⁺(aq) + A⁻(aq).
c(HA) = 0.0055 M.
α = 8.2% ÷ 100% = 0.082.
[H⁺] = c(HA) · α.
[H⁺] = 0.0055 M · 0.082.
[H⁺] = 0.000451 M.
pH = -log[H⁺].
pH = -log(0.000451 M).
pH = 3.35.
pH (potential of
hydrogen) is a numeric scale used to specify the acidity or basicity <span>an aqueous solution.</span>
