The conclusion that you can draw about the electron
transitions that can take place for a magnesium atom is that the photons produced
are not of a lone wavelength, therefore from many dissimilar levels to
subsequent levels, with many different wavelengths joining to create white.
Answer:
E. 1.6 x 10⁻¹⁰ M.
Explanation:
∵ pH = -log[H⁺] = 4.2
∴ [H⁺] = 6.31 x 10⁻⁵.
∵ [H⁺] [OH⁻] = 10⁻¹⁴.
∴ [OH⁻] = 10⁻¹⁴ / [H⁺] = 10⁻¹⁴ / 6.31 x 10⁻⁵ = 1.6 x 10⁻¹⁰ M.
Balanced equation: C₂H₄ + 3O₂ → 2CO₂ + 2H₂O
O₂ required: 3/1 x moles C₂H₄ = 3/1 x 6.51 = 19.53 moles
Answer:
Vascular tissue is made of two specialized conducting tissues: xylem and phloem. Xylem tissue transports water and nutrients from the roots to different parts of the plant, and also plays a role in structural support in the stem.
