Cr(s) + H+(aq) → Cr3+(aq) + H2(g)
balance the equation using half reactions method

Look at the bean data from days 4–6. use these data to explain how natural selection changed the number of dark red walking beans over time. writing part

Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?