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If h= planck’s constant, the de brigle wavelength...? When the following equation is balanced, the coefficient of Aluminum is -. Al (s) + H2O (l) → Al(OH)3 (s) + H2 (g)? How was the cov( X(s), X(t)) obtained. i know that E[x(s)] * E[x(t)] = 0 but i don't know how to calculate E[x(s) x(t)]? Team slug or team worm?!? Why is your weather page out of wack ? It shows sub-zero temps for St Clair Shores, Michigan. Why It's been liks this for sometime now.?